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In Stock: Sigma 105mm f/2.8 DG DN Macro Art ($799)

  
 
1bwana1
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p.19 #1 · In Stock: Sigma 105mm f/2.8 DG DN Macro Art ($799)


Here is a quick focus stacked shot of a Dandelion I saw in the front yard.

All shot manual including focus. I don't see what some are saying about the manual focus with this lens. It really seems to be on par with any of my focus by wire lenses. A bit behind my CV lenses, but aren't all e focus by wire lenses?

Lighting is the inexpensive but very nice all manual Godox ML-150 ring light. On sale for $50 at B7H and Adorama right now.

https://www.bhphotovideo.com/c/product/1341885-REG/godox_ml150_macro_ring_flash.html

Enjoy.






Edited on Dec 05, 2020 at 12:58 PM · View previous versions



Dec 04, 2020 at 07:45 PM
vdo1
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p.19 #2 · In Stock: Sigma 105mm f/2.8 DG DN Macro Art ($799)


"May I have some more treats, please?"

Tina was pretty hungry today, after the latest snowfall, and was asking for an extra.







(still through glass doors, I'll consider leaving them open next spring )



Dec 05, 2020 at 09:23 AM
die_kruzen
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p.19 #3 · In Stock: Sigma 105mm f/2.8 DG DN Macro Art ($799)


What do you get when you ask a few teenage girls to decorate 20 Christmas cookies? Let's just say, 17 of them will never see their first Christmas.

Still not enough sugar, so my wife made them crepes.














Dec 05, 2020 at 11:19 AM
Besar
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p.19 #4 · In Stock: Sigma 105mm f/2.8 DG DN Macro Art ($799)



Friends, i have a question for you

I have a problem with AF. It works fine at close range, it misses at distance. Could this be due to the body version? Is it too old?



Dec 05, 2020 at 01:04 PM
vdo1
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p.19 #5 · In Stock: Sigma 105mm f/2.8 DG DN Macro Art ($799)


Besar wrote:
Friends, i have a question for you

I have a problem with AF. It works fine at close range, it misses at distance. Could this be due to the body version? Is it too old?


A7R III here, so far I didn't notice anything unusual regarding AF.



Dec 05, 2020 at 01:28 PM
die_kruzen
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p.19 #6 · In Stock: Sigma 105mm f/2.8 DG DN Macro Art ($799)


A7III and haven't had any issues. At what distance are you experiencing problems?


Dec 05, 2020 at 01:34 PM
Besar
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p.19 #7 · In Stock: Sigma 105mm f/2.8 DG DN Macro Art ($799)


vdo1 wrote:
A7R III here, so far I didn't notice anything unusual regarding AF.




I have an old man A7I. Maybe this is the reason?




Dec 05, 2020 at 01:34 PM
Besar
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p.19 #8 · In Stock: Sigma 105mm f/2.8 DG DN Macro Art ($799)


die_kruzen wrote:
A7III and haven't had any issues. At what distance are you experiencing problems?




Mainly distance





Dec 05, 2020 at 01:35 PM
smpetty
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p.19 #9 · In Stock: Sigma 105mm f/2.8 DG DN Macro Art ($799)


1bwana1 wrote:
Here is a quick focus stacked shot of a Dandelion I saw in the front yard.

All shot manual including focus. I don't see what some are saying about the manual focus with this lens. It really seems to be on par with any of my focus by wire lenses. A bit behind my CV lenses, but aren't all e focus by wire lenses?

Lighting is the inexpensive but very nice all manual Godox ML-150 ring light. On sale for $50 at B7H and Adorama right now.

https://www.bhphotovideo.com/c/product/1341885-REG/godox_ml150_macro_ring_flash.html

Enjoy.


This is a striking image. Are you using a black background? If not, how did you achieve such a smooth black backdrop.




Dec 05, 2020 at 02:30 PM
1bwana1
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p.19 #10 · In Stock: Sigma 105mm f/2.8 DG DN Macro Art ($799)


Besar wrote:
Friends, i have a question for you

I have a problem with AF. It works fine at close range, it misses at distance. Could this be due to the body version? Is it too old?



Are you properly switching the focus limiter switch on the lens. It is really important for AF.



Dec 05, 2020 at 02:48 PM
 


Search in Used Dept. 

Besar
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p.19 #11 · In Stock: Sigma 105mm f/2.8 DG DN Macro Art ($799)


1bwana1 wrote:
Are you properly switching the focus limiter switch on the lens. It is really important for AF.




Yes, I have tried in all possible ways.




Dec 05, 2020 at 02:50 PM
1bwana1
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p.19 #12 · In Stock: Sigma 105mm f/2.8 DG DN Macro Art ($799)


smpetty wrote:
This is a striking image. Are you using a black background? If not, how did you achieve such a smooth black backdrop.




I am shooting with a ring flash all manual exposure and focus. I dial down my exposure to eliminate all ambient light. If I shoot a frame without flash it is perfectly black.

Then I set the flash power to properly expose the subject. Since it is a ring light it only exposes the subject.

Result is a well exposed subject on an absolute black background.



Edited on Dec 05, 2020 at 02:56 PM · View previous versions



Dec 05, 2020 at 02:53 PM
1bwana1
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p.19 #13 · In Stock: Sigma 105mm f/2.8 DG DN Macro Art ($799)


Besar wrote:
Yes, I have tried in all possible ways.



Manual focus at a distance works well?

AFS or AFC?


Focus on Shutter or Back Button Focus?



Dec 05, 2020 at 02:55 PM
Besar
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p.19 #14 · In Stock: Sigma 105mm f/2.8 DG DN Macro Art ($799)


Yes, the MF is working fine.
I used with AF-C and AF-S, there was no difference, AF was just as inaccurate.


"Focus on Shutter or Back Button Focus?" - I do not understand




Dec 05, 2020 at 03:03 PM
1bwana1
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p.19 #15 · In Stock: Sigma 105mm f/2.8 DG DN Macro Art ($799)


Besar wrote:
"Focus on Shutter or Back Button Focus?" - I do not understand



It is a way of keeping AF from activating at the same time the shutter is pressed. It is often more accurate, controllable, and less problems of compatibilities. Many of the best photographers shoot this way all of the time.


Watch this then give it a try.

https://www.markgaler.com/back-button-focus

Also try with a really high shutter speed or on a tripod with a two second timer. Since this lens has no stabilization it may be very slight movement that requires you to account for that with settings and technique.


Edited on Dec 05, 2020 at 03:18 PM · View previous versions



Dec 05, 2020 at 03:14 PM
vdo1
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p.19 #16 · In Stock: Sigma 105mm f/2.8 DG DN Macro Art ($799)


Besar wrote:
I have an old man A7I. Maybe this is the reason?



Could be. Any chance you could try it on a different body? Is there any camera store open, or any friends with a different camera model?



Dec 05, 2020 at 03:16 PM
Besar
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p.19 #17 · In Stock: Sigma 105mm f/2.8 DG DN Macro Art ($799)



1bwana1, Thanks for the movie. I'll try tomorrow.
I tried with a tripod and a self-timer to no avail.

Vdo1, I still have A6300, but at the moment I lent it to my friend.

Until Thursday I have time to return the Sigma to the store. I'm afraid that the next copy will be the same: /

Thank you very much for all your help. I'll let you know about the progress.
Best regards and sorry for my english



Dec 05, 2020 at 03:53 PM
vdo1
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p.19 #18 · In Stock: Sigma 105mm f/2.8 DG DN Macro Art ($799)


There are two more settings to check:

Priority Set in AF-S
Priority Set in AF-C

they should be set to "AF" for maximum accuracy.



Dec 05, 2020 at 09:38 PM
1bwana1
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p.19 #19 · In Stock: Sigma 105mm f/2.8 DG DN Macro Art ($799)


I realized I had not shot my Sigma 105 macro at far away objects yet. So I tested at a variety of distances. And apertures. No issues super sharp.


Dec 05, 2020 at 09:47 PM
vdo1
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p.19 #20 · In Stock: Sigma 105mm f/2.8 DG DN Macro Art ($799)


Hola! It's me again, Tina!








Dec 06, 2020 at 10:25 AM
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