Sigma 300-600 F4
p.4 #1Sigma 300-600 F4
A few recent ones from the A1 and 300-600 at some of my local hangouts. Tucson, AZ.
siblings playing
Male coming in to mate.
siblings playing
Male coming in to mate.
Mar 31, 2026 at 06:22 PM
p.4 #2Sigma 300-600 F4
BigBabyMoses06 wrote:
What body are you running?
Here's some from tonight. I took about 2200 images and only about 10 were missed focus.
https://live.staticflickr.com/65535/55178883655_ce9a25dc0e_h.jpgDSC02383 by D.C. 83, on Flickr
https://live.staticflickr.com/65535/55178738399_6397d17684_h.jpg3.30.1 by D.C. 83, on Flickr
https://live.staticflickr.com/65535/55177594787_d529e6e82b_h.jpg3.30.3 by D.C. 83, on Flickr
https://live.staticflickr.com/65535/55178649548_3632586f16_h.jpg3.30.4 by D.C. 83, on Flickr
https://live.staticflickr.com/65535/55177594642_2518543520_h.jpg3.30.6 by D.C. 83, on Flickr
https://live.staticflickr.com/65535/55177594792_0a3042bbc7_h.jpg3.30.2 by D.C. 83, on Flickr
https://live.staticflickr.com/65535/55178883485_c3574fce35_h.jpg3.30.5 by D.C. 83, on FlickrAt this point, maybe my 300-600 is defective? I'm missing a decent amount of shots from every burst, soft focus. Or is there some hidden setting I don't know about? Maybe I should send it in to Sigma for a repair or checkup or something.
I'm using the A1 Mark II
What body are you running?
ASC_1900 wrote
David83 wrote
Well, the shad run is in full swing so the Ospreys are abundant here on the river. I finally took the Sigma down by itself to run it through a true test and it did not disappoint. Unfortunately, most of the action was on the other side of the river so I had very few good opportunities. I really love the way this lens renders. Ive been shooting the 600Gm mostly and have some threads over in the wildlife and nature forum.Here's some from tonight. I took about 2200 images and only about 10 were missed focus.
https://live.staticflickr.com/65535/55178883655_ce9a25dc0e_h.jpgDSC02383 by D.C. 83, on Flickr
https://live.staticflickr.com/65535/55178738399_6397d17684_h.jpg3.30.1 by D.C. 83, on Flickr
https://live.staticflickr.com/65535/55177594787_d529e6e82b_h.jpg3.30.3 by D.C. 83, on Flickr
https://live.staticflickr.com/65535/55178649548_3632586f16_h.jpg3.30.4 by D.C. 83, on Flickr
https://live.staticflickr.com/65535/55177594642_2518543520_h.jpg3.30.6 by D.C. 83, on Flickr
https://live.staticflickr.com/65535/55177594792_0a3042bbc7_h.jpg3.30.2 by D.C. 83, on Flickr
https://live.staticflickr.com/65535/55178883485_c3574fce35_h.jpg3.30.5 by D.C. 83, on Flickr
I'm using the A1 Mark II
Mar 31, 2026 at 06:30 PM
p.4 #3Sigma 300-600 F4
David83 wrote:
Well, the shad run is in full swing so the Ospreys are abundant here on the river. I finally took the Sigma down by itself to run it through a true test and it did not disappoint. Unfortunately, most of the action was on the other side of the river so I had very few good opportunities. I really love the way this lens renders. Ive been shooting the 600Gm mostly and have some threads over in the wildlife and nature forum.
Here's some from tonight. I took about 2200 images and only about 10 were missed focus.
https://live.staticflickr.com/65535/55178883655_ce9a25dc0e_h.jpgDSC02383 by...Show more →
Great set David!
Well, the shad run is in full swing so the Ospreys are abundant here on the river. I finally took the Sigma down by itself to run it through a true test and it did not disappoint. Unfortunately, most of the action was on the other side of the river so I had very few good opportunities. I really love the way this lens renders. Ive been shooting the 600Gm mostly and have some threads over in the wildlife and nature forum.
Here's some from tonight. I took about 2200 images and only about 10 were missed focus.
https://live.staticflickr.com/65535/55178883655_ce9a25dc0e_h.jpgDSC02383 by...Show more →
Great set David!
Apr 01, 2026 at 02:41 AM
p.4 #4Sigma 300-600 F4
I recently joined the Sigma 300-600mm club! Finally got a chance to take it out this past weekend at Sonoma Raceway
The lens is very sharp! AF motors are very fast. Yes, it's heavy. But I was using a monopod. So it wasn't an issue. But I think, judging by everyone's wonderful images in this thread, that it's hand holdable
Here's some images from the weekend (cross posted from the Sony FE thread)
The lens is very sharp! AF motors are very fast. Yes, it's heavy. But I was using a monopod. So it wasn't an issue. But I think, judging by everyone's wonderful images in this thread, that it's hand holdable
Here's some images from the weekend (cross posted from the Sony FE thread)
ILCE-1M2 300-600mm F4 DG OS | Sports 025 lens 551mm f/4.0 1/500s 200 ISO 0.0 EV
ILCE-1M2 300-600mm F4 DG OS | Sports 025 lens 600mm f/4.0 1/1250s 400 ISO 0.0 EV
ILCE-1M2 300-600mm F4 DG OS | Sports 025 lens 519mm f/4.0 1/320s 100 ISO 0.0 EV
ILCE-1M2 300-600mm F4 DG OS | Sports 025 lens 568mm f/4.0 1/400s 250 ISO 0.0 EV
ILCE-1M2 300-600mm F4 DG OS | Sports 025 lens 597mm f/4.0 1/500s 250 ISO 0.0 EV
ILCE-1M2 300-600mm F4 DG OS | Sports 025 lens 600mm f/4.0 1/400s 125 ISO 0.0 EV
ILCE-1M2 300-600mm F4 DG OS | Sports 025 lens 600mm f/4.0 1/1000s 200 ISO 0.0 EV
Apr 01, 2026 at 02:54 AM
p.4 #5Sigma 300-600 F4
At this point, maybe my 300-600 is defective? I'm missing a decent amount of shots from every burst, soft focus. Or is there some hidden setting I don't know about? Maybe I should send it in to Sigma for a repair or checkup or something.
That's wild. My only out of focus shots were all in a sequence where an Osprey had dove and was trying to lift back off. I think it was more the camera trying to decide what to focus on than anything else. It was back-lit and water was splashing everywhere, just chaos for a few frames. .
Apr 01, 2026 at 11:23 AM
p.4 #6Sigma 300-600 F4
ASC_1900 wrote:
Here's some from tonight. I took about 2200 images and only about 10 were missed focus.
https://live.staticflickr.com/65535/55178883655_ce9a25dc0e_h.jpgDSC02383 by D.C. 83, on Flickr
https://live.staticflickr.com/65535/55178738399_6397d17684_h.jpg3.30.1 by D.C. 83, on Flickr
https://live.staticflickr.com/65535/55177594787_d529e6e82b_h.jpg3.30.3 by D.C. 83, on Flickr
https://live.staticflickr.com/65535/55178649548_3632586f16_h.jpg3.30.4 by D.C. 83, on Flickr
https://live.staticflickr.com/65535/55177594642_2518543520_h.jpg3.30.6 by D.C. 83, on Flickr
https://live.staticflickr.com/65535/55177594792_0a3042bbc7_h.jpg3.30.2 by D.C. 83, on Flickr
https://live.staticflickr.com/65535/55178883485_c3574fce35_h.jpg3.30.5 by D.C. 83, on FlickrAt this point, maybe my 300-600 is defective? I'm missing a decent amount of shots from every burst, soft focus. Or is there some hidden setting I don't know about? Maybe I should send it in to Sigma for a repair or checkup or something.
I assume you’re photographing birds? You sound like you have plenty of knowledge and experience. So I’m ruling out user error
Perhaps post a sequence along with your settings. On the off chance someone here can help
Not sure sending the lens in is a good option. Because of it’s newness and relative rarity, my guess anyone with the ability to diagnose and fix it, is in Japan. The time, hassle, and possible cost to have the lens evaluated is probably the last option
In my very limited experience with this lens, I find it to be the fastest focusing long zoom lens I’ve tried. I would rank it above any super zoom Sony offers. And just below the Super telephoto primes
Hopefully, you can find a fix for your issues
David83 wrote
Well, the shad run is in full swing so the Ospreys are abundant here on the river. I finally took the Sigma down by itself to run it through a true test and it did not disappoint. Unfortunately, most of the action was on the other side of the river so I had very few good opportunities. I really love the way this lens renders. Ive been shooting the 600Gm mostly and have some threads over in the wildlife and nature forum.Here's some from tonight. I took about 2200 images and only about 10 were missed focus.
https://live.staticflickr.com/65535/55178883655_ce9a25dc0e_h.jpgDSC02383 by D.C. 83, on Flickr
https://live.staticflickr.com/65535/55178738399_6397d17684_h.jpg3.30.1 by D.C. 83, on Flickr
https://live.staticflickr.com/65535/55177594787_d529e6e82b_h.jpg3.30.3 by D.C. 83, on Flickr
https://live.staticflickr.com/65535/55178649548_3632586f16_h.jpg3.30.4 by D.C. 83, on Flickr
https://live.staticflickr.com/65535/55177594642_2518543520_h.jpg3.30.6 by D.C. 83, on Flickr
https://live.staticflickr.com/65535/55177594792_0a3042bbc7_h.jpg3.30.2 by D.C. 83, on Flickr
https://live.staticflickr.com/65535/55178883485_c3574fce35_h.jpg3.30.5 by D.C. 83, on Flickr
I assume you’re photographing birds? You sound like you have plenty of knowledge and experience. So I’m ruling out user error
Perhaps post a sequence along with your settings. On the off chance someone here can help
Not sure sending the lens in is a good option. Because of it’s newness and relative rarity, my guess anyone with the ability to diagnose and fix it, is in Japan. The time, hassle, and possible cost to have the lens evaluated is probably the last option
In my very limited experience with this lens, I find it to be the fastest focusing long zoom lens I’ve tried. I would rank it above any super zoom Sony offers. And just below the Super telephoto primes
Hopefully, you can find a fix for your issues
Apr 01, 2026 at 07:46 PM
p.4 #7Sigma 300-600 F4
robert614 wrote:
Here's some from tonight. I took about 2200 images and only about 10 were missed focus.
https://live.staticflickr.com/65535/55178883655_ce9a25dc0e_h.jpgDSC02383 by D.C. 83, on Flickr
https://live.staticflickr.com/65535/55178738399_6397d17684_h.jpg3.30.1 by D.C. 83, on Flickr
https://live.staticflickr.com/65535/55177594787_d529e6e82b_h.jpg3.30.3 by D.C. 83, on Flickr
https://live.staticflickr.com/65535/55178649548_3632586f16_h.jpg3.30.4 by D.C. 83, on Flickr
https://live.staticflickr.com/65535/55177594642_2518543520_h.jpg3.30.6 by D.C. 83, on Flickr
https://live.staticflickr.com/65535/55177594792_0a3042bbc7_h.jpg3.30.2 by D.C. 83, on Flickr
https://live.staticflickr.com/65535/55178883485_c3574fce35_h.jpg3.30.5 by D.C. 83, on FlickrAt this point, maybe my 300-600 is defective? I'm missing a decent amount of shots from every burst, soft focus. Or is there some hidden setting I don't know about? Maybe I should send it in to Sigma for a repair or checkup or something.I assume you’re photographing birds? You sound like you have plenty of knowledge and experience. So I’m ruling out user error
Perhaps post a sequence along with your settings. On the off chance someone here can help
Not sure sending the lens in is a good option. Because of it’s newness and relative rarity, my guess anyone with the ability to diagnose and fix it, is in Japan. The time, hassle, and possible cost to have the lens evaluated is probably the last option
In my very limited experience with this lens, I find it to be the fastest focusing long zoom lens...Show more →
I'm doing some wildlife but it's mostly a sports lens. I don't think it is user error, next time I go out I'll keep a few sequences for data point
ASC_1900 wrote
David83 wrote
Well, the shad run is in full swing so the Ospreys are abundant here on the river. I finally took the Sigma down by itself to run it through a true test and it did not disappoint. Unfortunately, most of the action was on the other side of the river so I had very few good opportunities. I really love the way this lens renders. Ive been shooting the 600Gm mostly and have some threads over in the wildlife and nature forum.Here's some from tonight. I took about 2200 images and only about 10 were missed focus.
https://live.staticflickr.com/65535/55178883655_ce9a25dc0e_h.jpgDSC02383 by D.C. 83, on Flickr
https://live.staticflickr.com/65535/55178738399_6397d17684_h.jpg3.30.1 by D.C. 83, on Flickr
https://live.staticflickr.com/65535/55177594787_d529e6e82b_h.jpg3.30.3 by D.C. 83, on Flickr
https://live.staticflickr.com/65535/55178649548_3632586f16_h.jpg3.30.4 by D.C. 83, on Flickr
https://live.staticflickr.com/65535/55177594642_2518543520_h.jpg3.30.6 by D.C. 83, on Flickr
https://live.staticflickr.com/65535/55177594792_0a3042bbc7_h.jpg3.30.2 by D.C. 83, on Flickr
https://live.staticflickr.com/65535/55178883485_c3574fce35_h.jpg3.30.5 by D.C. 83, on Flickr
Perhaps post a sequence along with your settings. On the off chance someone here can help
Not sure sending the lens in is a good option. Because of it’s newness and relative rarity, my guess anyone with the ability to diagnose and fix it, is in Japan. The time, hassle, and possible cost to have the lens evaluated is probably the last option
In my very limited experience with this lens, I find it to be the fastest focusing long zoom lens...Show more →
I'm doing some wildlife but it's mostly a sports lens. I don't think it is user error, next time I go out I'll keep a few sequences for data point
Apr 10, 2026 at 11:20 AM
p.4 #8Sigma 300-600 F4
I think the best way to find out if it's a lens issue is to get a test card printed, take some photos from a tripod and also handheld. If your getting a soft image on both then it would point to a lens issue, if its only occurring handheld then IBIS or Lens Stabilization may be a problem.
Also, if you have a filter on the lens I would remove it for the test.
Also, if you have a filter on the lens I would remove it for the test.
Apr 10, 2026 at 03:19 PM
p.4 #9Sigma 300-600 F4
ASC_1900 wrote:
Here's some from tonight. I took about 2200 images and only about 10 were missed focus.
https://live.staticflickr.com/65535/55178883655_ce9a25dc0e_h.jpgDSC02383 by D.C. 83, on Flickr
https://live.staticflickr.com/65535/55178738399_6397d17684_h.jpg3.30.1 by D.C. 83, on Flickr
https://live.staticflickr.com/65535/55177594787_d529e6e82b_h.jpg3.30.3 by D.C. 83, on Flickr
https://live.staticflickr.com/65535/55178649548_3632586f16_h.jpg3.30.4 by D.C. 83, on Flickr
https://live.staticflickr.com/65535/55177594642_2518543520_h.jpg3.30.6 by D.C. 83, on Flickr
https://live.staticflickr.com/65535/55177594792_0a3042bbc7_h.jpg3.30.2 by D.C. 83, on Flickr
https://live.staticflickr.com/65535/55178883485_c3574fce35_h.jpg3.30.5 by D.C. 83, on FlickrAt this point, maybe my 300-600 is defective? I'm missing a decent amount of shots from every burst, soft focus. Or is there some hidden setting I don't know about? Maybe I should send it in to Sigma for a repair or checkup or something.I assume you’re photographing birds? You sound like you have plenty of knowledge and experience. So I’m ruling out user error
Perhaps post a sequence along with your settings. On the off chance someone here can help
Not sure sending the lens in is a good option. Because of it’s newness and relative rarity, my guess anyone with the ability to diagnose and fix it, is in Japan. The time, hassle, and possible cost to have the lens evaluated is probably the last option
In my very limited experience with this lens, I find it to be the fastest focusing long zoom lens I’ve tried. I would rank it above any super zoom Sony offers. And just below the Super telephoto primes
Hopefully, you can find a fix for your issuesI'm doing some wildlife but it's mostly a sports lens. I don't think it is user error, next time I go out I'll keep a few sequences for data point
Deff interested in hearing back with your results.
robert614 wrote
ASC_1900 wrote
David83 wrote
Well, the shad run is in full swing so the Ospreys are abundant here on the river. I finally took the Sigma down by itself to run it through a true test and it did not disappoint. Unfortunately, most of the action was on the other side of the river so I had very few good opportunities. I really love the way this lens renders. Ive been shooting the 600Gm mostly and have some threads over in the wildlife and nature forum.Here's some from tonight. I took about 2200 images and only about 10 were missed focus.
https://live.staticflickr.com/65535/55178883655_ce9a25dc0e_h.jpgDSC02383 by D.C. 83, on Flickr
https://live.staticflickr.com/65535/55178738399_6397d17684_h.jpg3.30.1 by D.C. 83, on Flickr
https://live.staticflickr.com/65535/55177594787_d529e6e82b_h.jpg3.30.3 by D.C. 83, on Flickr
https://live.staticflickr.com/65535/55178649548_3632586f16_h.jpg3.30.4 by D.C. 83, on Flickr
https://live.staticflickr.com/65535/55177594642_2518543520_h.jpg3.30.6 by D.C. 83, on Flickr
https://live.staticflickr.com/65535/55177594792_0a3042bbc7_h.jpg3.30.2 by D.C. 83, on Flickr
https://live.staticflickr.com/65535/55178883485_c3574fce35_h.jpg3.30.5 by D.C. 83, on Flickr
Perhaps post a sequence along with your settings. On the off chance someone here can help
Not sure sending the lens in is a good option. Because of it’s newness and relative rarity, my guess anyone with the ability to diagnose and fix it, is in Japan. The time, hassle, and possible cost to have the lens evaluated is probably the last option
In my very limited experience with this lens, I find it to be the fastest focusing long zoom lens I’ve tried. I would rank it above any super zoom Sony offers. And just below the Super telephoto primes
Hopefully, you can find a fix for your issues
Deff interested in hearing back with your results.
Apr 10, 2026 at 06:02 PM
p.4 #10Sigma 300-600 F4
Tried the Sigma at the Wings Over Solano airshow over the weekend. It was pretty overcast, so lighting wasn't ideal.
While you definitely feel the weight of the lens, but it's definitely doable. I actually had more of an issue retraining my brain to let off the AF-On button, zoom, then require focus. Took a little getting used to, but I got used to it after a while
Here's some pics from the weekend
U.S Thunderbirds
P-51 Mustang
Patriot Jet Team
Aero Vodochody L-39 Albatros a.k.a. The Pink Jet
not really a portrait lens, but here's a 300mm shot
C-5M Super Galaxy
While you definitely feel the weight of the lens, but it's definitely doable. I actually had more of an issue retraining my brain to let off the AF-On button, zoom, then require focus. Took a little getting used to, but I got used to it after a while
Here's some pics from the weekend
U.S Thunderbirds
ILCE-1M2 300-600mm F4 DG OS | Sports 025 lens 300mm f/4.0 1/3200s 320 ISO 0.0 EV
P-51 Mustang
ILCE-1M2 300-600mm F4 DG OS | Sports 025 lens 361mm f/8.0 1/160s 50 ISO 0.0 EV
Patriot Jet Team
ILCE-1M2 300-600mm F4 DG OS | Sports 025 lens 301mm f/4.0 1/3200s 320 ISO 0.0 EV
ILCE-1M2 300-600mm F4 DG OS | Sports 025 lens 300mm f/4.0 1/3200s 250 ISO 0.0 EV
ILCE-1M2 300-600mm F4 DG OS | Sports 025 lens 300mm f/4.0 1/3200s 320 ISO 0.0 EV
Aero Vodochody L-39 Albatros a.k.a. The Pink Jet
ILCE-1M2 300-600mm F4 DG OS | Sports 025 lens 501mm f/4.0 1/3200s 200 ISO 0.0 EV
not really a portrait lens, but here's a 300mm shot
ILCE-1M2 300-600mm F4 DG OS | Sports 025 lens 300mm f/4.0 1/2500s 400 ISO 0.0 EV
ILCE-1M2 300-600mm F4 DG OS | Sports 025 lens 401mm f/4.0 1/3200s 160 ISO 0.0 EV
C-5M Super Galaxy
ILCE-1M2 300-600mm F4 DG OS | Sports 025 lens 300mm f/4.0 1/3200s 400 ISO 0.0 EV
ILCE-1M2 300-600mm F4 DG OS | Sports 025 lens 300mm f/4.0 1/3200s 320 ISO 0.0 EV
Apr 28, 2026 at 11:27 PM
|
p.4 #11Sigma 300-600 F4
Last batch from the airshow. I hope I'm not spamming the thread. But this thread doesn't get much action, so I hope it's Ok
ILCE-1M2 300-600mm F4 DG OS | Sports 025 lens 600mm f/10.0 1/160s 50 ISO 0.0 EV
ILCE-1M2 300-600mm F4 DG OS | Sports 025 lens 300mm f/4.0 1/3200s 125 ISO 0.0 EV
ILCE-1M2 300-600mm F4 DG OS | Sports 025 lens 416mm f/9.0 1/160s 50 ISO 0.0 EV
ILCE-1M2 300-600mm F4 DG OS | Sports 025 lens 600mm f/4.0 1/3200s 200 ISO 0.0 EV
ILCE-1M2 300-600mm F4 DG OS | Sports 025 lens 300mm f/8.0 1/160s 50 ISO 0.0 EV
ILCE-1M2 300-600mm F4 DG OS | Sports 025 lens 300mm f/4.0 1/3200s 200 ISO 0.0 EV
ILCE-1M2 300-600mm F4 DG OS | Sports 025 lens 384mm f/4.0 1/3200s 500 ISO 0.0 EV
ILCE-1M2 300-600mm F4 DG OS | Sports 025 lens 300mm f/4.0 1/3200s 320 ISO 0.0 EV
ILCE-1M2 300-600mm F4 DG OS | Sports 025 lens 600mm f/8.0 1/160s 50 ISO 0.0 EV
ILCE-1M2 300-600mm F4 DG OS | Sports 025 lens 600mm f/9.0 1/160s 50 ISO 0.0 EV
Apr 29, 2026 at 07:56 PM
p.4 #12Sigma 300-600 F4
For anyone else with this lens, does it have its own firmware? Sounds like a stupid question (I know), but I can't seem to find any details on the firmware on the Sigma page.
https://www.sigma-global.com/en/support/firmware/
https://www.sigma-global.com/en/support/firmware/
May 06, 2026 at 03:45 AM
p.4 #13Sigma 300-600 F4
If there is no firmware listed, there is no update.
Sony does the same thing.
Sony does the same thing.
May 06, 2026 at 04:22 AM
p.4 #14Sigma 300-600 F4
Dameon wrote:
For anyone else with this lens, does it have its own firmware? Sounds like a stupid question (I know), but I can't seem to find any details on the firmware on the Sigma page.
https://www.sigma-global.com/en/support/firmware/
As far as I know, it’s still on its original firmware
May 06, 2026 at 09:56 AM
p.4 #15Sigma 300-600 F4
Some recent images with the 300-600 and Sony A1. Tucson, AZ.
with Viltrox 2x
ILCE-1 300-600mm F4 DG OS | Sports 025 lens 600mm f/4.0 1/4000s 8000 ISO 0.0 EV
with Viltrox 2x
ILCE-1 300-600mm F4 DG OS | Sports 025 lens 600mm f/4.0 1/1250s 3200 ISO 0.0 EV
ILCE-1 300-600mm F4 DG OS | Sports 025 lens 472mm f/4.0 1/2000s 1600 ISO -0.3 EV
ILCE-1 300-600mm F4 DG OS | Sports 025 lens 571mm f/4.0 1/1600s 1600 ISO -0.3 EV
ILCE-1 300-600mm F4 DG OS | Sports 025 lens 600mm f/4.0 1/4000s 5000 ISO 0.0 EV
ILCE-1 300-600mm F4 DG OS | Sports 025 lens 600mm f/4.0 1/2000s 1000 ISO 0.0 EV
ILCE-1 300-600mm F4 DG OS | Sports 025 lens 393mm f/4.0 1/2500s 1250 ISO +1.0 EV
ILCE-1 300-600mm F4 DG OS | Sports 025 lens 600mm f/4.0 1/1600s 640 ISO 0.0 EV
ILCE-1 300-600mm F4 DG OS | Sports 025 lens 600mm f/4.0 1/3200s 1250 ISO -0.3 EV
ILCE-1 300-600mm F4 DG OS | Sports 025 lens 600mm f/4.0 1/3200s 3200 ISO -0.3 EV
May 18, 2026 at 07:03 PM
p.4 #16Sigma 300-600 F4
jeffryscott wrote:
Some recent images with the 300-600 and Sony A1. Tucson, AZ.
Nice shots Jeffrey!
How’s that Viltrox 2X TC working with the Sigma? I rarely need 1200mm, but I’m hoping that Viltrox comes out with a 1.4X
Some recent images with the 300-600 and Sony A1. Tucson, AZ.
Nice shots Jeffrey!
How’s that Viltrox 2X TC working with the Sigma? I rarely need 1200mm, but I’m hoping that Viltrox comes out with a 1.4X
May 18, 2026 at 08:56 PM
p.4 #17Sigma 300-600 F4
Woah, I must have been living under a rock: the Viltrox 2x works with this lens? I now have renewed interest in it.
May 18, 2026 at 09:10 PM
p.4 #18Sigma 300-600 F4
robert614 wrote:
Nice shots Jeffrey!
How’s that Viltrox 2X TC working with the Sigma? I rarely need 1200mm, but I’m hoping that Viltrox comes out with a 1.4X
Thanks!
The viltrox works OK. AF with center zone is pretty good, go to edges with smaller points and it is erratic. But it is very very good when it hits. I would love Viltrox to come out with a 1.4x.
I believe Viltrox gets around the Sony limitation by being transparent, it does not change aperture on the camera, but using auto ISO I don't have to do anything to compensate, and it doesn't show proper focal length in exif.
jeffryscott wrote
Some recent images with the 300-600 and Sony A1. Tucson, AZ.How’s that Viltrox 2X TC working with the Sigma? I rarely need 1200mm, but I’m hoping that Viltrox comes out with a 1.4X
Thanks!
The viltrox works OK. AF with center zone is pretty good, go to edges with smaller points and it is erratic. But it is very very good when it hits. I would love Viltrox to come out with a 1.4x.
I believe Viltrox gets around the Sony limitation by being transparent, it does not change aperture on the camera, but using auto ISO I don't have to do anything to compensate, and it doesn't show proper focal length in exif.
May 19, 2026 at 12:27 PM
p.4 #19Sigma 300-600 F4
Rialto wrote:
Woah, I must have been living under a rock: the Viltrox 2x works with this lens? I now have renewed interest in it.
It does work, it isn't perfect but it certainly does a great job when it hits ...
Woah, I must have been living under a rock: the Viltrox 2x works with this lens? I now have renewed interest in it.
It does work, it isn't perfect but it certainly does a great job when it hits ...
May 19, 2026 at 12:28 PM
p.4 #20Sigma 300-600 F4
jeffryscott wrote:
It does work, it isn't perfect but it certainly does a great job when it hits ...
How often does it hit though? I recently got the 300-600 and find myself still wanting reach at times but not sure if the image degradation of the 2x viltrox tc is worth it if the iq also take a big hit.
Rialto wrote
Woah, I must have been living under a rock: the Viltrox 2x works with this lens? I now have renewed interest in it.How often does it hit though? I recently got the 300-600 and find myself still wanting reach at times but not sure if the image degradation of the 2x viltrox tc is worth it if the iq also take a big hit.
May 21, 2026 at 03:02 PM