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5DmkIII & Kenko teleplus pro plus 300 dg

  
 
CosmicCruiser
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p.1 #1 · p.1 #1 · 5DmkIII & Kenko teleplus pro plus 300 dg


2017 I shot the solar eclipse with my 5Dmk3 100-400 L IS and the kenko 1.4 pro plus 300dg. When the eclipse started I shot several shots up to close to totality when the camera shutdown and I forget what the message was. I hurriedly removed the extender and resumed shooting. Any ideas what was the problem here? All specs I've found show the lens and camera are compatible with the extender. I'm set up to be at ground zero in April and am wondering if I should use it, buy a Canon 1.4 or forget the extenders all together. Thanks for any info. Robert


Nov 03, 2023 at 12:25 PM
Critters
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p.1 #2 · p.1 #2 · 5DmkIII & Kenko teleplus pro plus 300 dg


I had the Kenko many years ago...it died one week after the warranty ended. :-(


Nov 03, 2023 at 12:43 PM
Critters
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p.1 #3 · p.1 #3 · 5DmkIII & Kenko teleplus pro plus 300 dg


I had the 100-400 V1 and 5D3 and got the Canon 1.4X extender. I'm not convinced that the extender provided more than just cropping. I'm using Topaz Gigapixel and find the results usually are better than any extender...more post processing though.


Nov 03, 2023 at 12:48 PM
CosmicCruiser
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p.1 #4 · p.1 #4 · 5DmkIII & Kenko teleplus pro plus 300 dg


Thanks guys. Appreciate your input. Maybe just forgetting it is the best option. Robert



Nov 03, 2023 at 03:39 PM
AmbientMike
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p.1 #5 · p.1 #5 · 5DmkIII & Kenko teleplus pro plus 300 dg




CosmicCruiser wrote:
2017 I shot the solar eclipse with my 5Dmk3 100-400 L IS and the kenko 1.4 pro plus 300dg. When the eclipse started I shot several shots up to close to totality when the camera shutdown and I forget what the message was. I hurriedly removed the extender and resumed shooting. Any ideas what was the problem here? All specs I've found show the lens and camera are compatible with the extender. I'm set up to be at ground zero in April and am wondering if I should use it, buy a Canon 1.4 or forget the extenders all together.
...Show more

One thing I do is rotate the lens in the mount if this happens. My lens+ tc combo is older and has developed some play. I can usually tell if it's a problem if I see 00 in the aperture, if I miss it I get an error and often have to hurriedly turn off the camera.

It's gotten bad on mine, cleaning contact smight have helped, but didn't fix it. I'd guess a connection isn't being made in the lens or tc, I get messages on the lens only but not as many

If you are putting a lot of effort into the eclipse a longer lens and a backup body isn't a bad idea if you don't already have one, maybe 150-600 Sigma and rebel?. Are you having issues with the lens sans tc? 400mm really too short imo for an eclipse



Nov 03, 2023 at 04:25 PM
CosmicCruiser
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p.1 #6 · p.1 #6 · 5DmkIII & Kenko teleplus pro plus 300 dg


Hi Mike, My TC was new at least in the fact I never used it. Taking my 40mm to 560mm I though was a good idea. The fact that I shot several shots as the eclipse progressed really caught me when it failed at totality. Sadly since I didn't refocus after removing the TC caused OOF shots. I do have a 6D as a back up and though most articles say 600mm is a good start I don't see me buying 600mm. I do airshows where 400mm is more than adequate. I've got some time before April to play around and see what happens. Thanks for replying. Doing the eclipse? Robert



Nov 03, 2023 at 05:06 PM
AmbientMike
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p.1 #7 · p.1 #7 · 5DmkIII & Kenko teleplus pro plus 300 dg




CosmicCruiser wrote:
Hi Mike, My TC was new at least in the fact I never used it. Taking my 40mm to 560mm I though was a good idea. The fact that I shot several shots as the eclipse progressed really caught me when it failed at totality. Sadly since I didn't refocus after removing the TC caused OOF shots. I do have a 6D as a back up and though most articles say 600mm is a good start I don't see me buying 600mm. I do airshows where 400mm is more than adequate. I've got some time before April to play around
...Show more

I'm not sure if I'll photograph the eclipse or just enjoy it. Thankfully this thread has me considering it. Need to see the path of totality it might be pretty close.

Could you just turn the camera off and then the tc started doing OK, or maybe just pull the tc off if it gives you problems? Annoying but only takes seconds. That's the thing I have to do if I get an error on mine but it's been fine for years, started having more issues recently, only get occasional errors on the lens only and can usually rotate it .

Stinks that your totality photos got goofed up. Had the telescope + solar filter out last month for the eclipse. Have 200-500 adaptall-2 maybe I should try to get something, you probably made the right call using the tc 400mm quite short given the moon & sun about half degree, even 800/11 over 3° on FF IIRC



Nov 04, 2023 at 12:05 PM
robinlee
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p.1 #8 · p.1 #8 · 5DmkIII & Kenko teleplus pro plus 300 dg


I have Kenko 1.4x and 3x, they are still sitting in my drawer


Nov 04, 2023 at 01:04 PM
jcolwell
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p.1 #9 · p.1 #9 · 5DmkIII & Kenko teleplus pro plus 300 dg


It's related to the camera, as much as to the Kenko TC and the lens. Check page 84 of the 5DIII manual:

"With lenses whose maximum aperture is smaller than f/5.6, AF is not possible during viewfinder shooting...".

That jives with my memory of using the EF 100-400L IS and extenders/TC's. I sold the 100-400 Mk I about nine years ago, but I still have the Teleplus Pro 300 DG 1.4x TC (and 1.4x III, 2x III). Anyway, the 100-400L IS II works fine with the Kenko on my 5DS (manual says AF is OK to f/8), but not on a 6D, which has the same f/5.6 limit for AF as the 5DIII.

An alternative approach is to isolate the camera from the lens (+/- extender). This is an old Alt lens trick. Let me know if you want to know how it works. Also, you have to set the camera to shoot with no lens attached. You have to use manual focus, but the camera should cooperate.

Edited on Nov 04, 2023 at 03:24 PM · View previous versions



Nov 04, 2023 at 02:32 PM
mdees88
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p.1 #10 · p.1 #10 · 5DmkIII & Kenko teleplus pro plus 300 dg


Do you have a crop body camera? The 100-400 on a crop body would be adequate in my opinion. I just shot the annular eclipse with a FF camera, 100-400 IS II and the Canon EF 1.4x III extender. This is 560mm effective focal length and it was adequate (I cropped and ran through super resolution in lightroom). A crop body on the 100-400 without a TC would get you 640mm without the negative effects of using a TC.

Also, I highly recommend using the baaeder planetarium astrosolar PHOTO film OD 3.8 (not the baader astrosolar SAFETY film OD 5.0 like EVERYONE else uses). The photo film is NOT viewing safe so you cannot look through the optical viewfinder, only live view, but it blocks a lot less light and allows much faster shutter speeds. I was getting 1/6400th of a second F10 ISO 100 and all my shots were handheld.

I had a thousand oaks optical "full aperture" solarlite polymer filter on my primary camera (R7, RF 100-500, 1.4x extender) but my shutter speeds were 1/10-1/50 at ISO 640 which is way too slow considering how bright the sun is. I had a lot of motion blur problems due to high wind, and this was on a tracking mount. This was at F11. Wouldn't be quite as bad at a wider aperture. I like the slip on function of the filter and the color it gives. The sun is white when using the baader film so you will have to add color in lightroom.





1)

  Canon EOS R5    EF100-400mm f/4.5-5.6L IS II USM +1.4x III lens    560mm    f/10.0    1/6400s    100 ISO    0.0 EV  







2)

  Canon EOS R5    EF100-400mm f/4.5-5.6L IS II USM +1.4x III lens    560mm    f/10.0    1/6400s    100 ISO    0.0 EV  







3)

  Canon EOS R5    EF100-400mm f/4.5-5.6L IS II USM +1.4x III lens    560mm    f/10.0    1/6400s    100 ISO    0.0 EV  




Nov 04, 2023 at 03:24 PM
 


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CosmicCruiser
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p.1 #11 · p.1 #11 · 5DmkIII & Kenko teleplus pro plus 300 dg


If you plan on going better get a hotel ASAP. I'm in Memphis and I must go into Ark for totality and hotels are going fast! Plus rates are high! Robert


Nov 04, 2023 at 09:13 PM
CosmicCruiser
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p.1 #12 · p.1 #12 · 5DmkIII & Kenko teleplus pro plus 300 dg


Here's 2 of mine. Totality is OOF












Nov 04, 2023 at 09:22 PM
mdees88
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p.1 #13 · p.1 #13 · 5DmkIII & Kenko teleplus pro plus 300 dg


I like your taste in color, what filter did you use? That's crazy how it worked fine all the way up until totality. So your totality shot was 400mm on a FF? I guess that image is cropped a good bit too? As of now, I'm planning on shooting 500mm on my FF and either 400mm or maybe 560mm on my crop body (640-896mm effective). I just do not want to be too zoomed in when totality hits and cut off the edges of the corona. Your totality image looks good as far as scale, about as tight as I would like mine to be.

I just looked at some hotels, man you're not kidding, especially around the bigger cities. I'm undecided on where I'm going and honestly, I won't decide until a day or two before based purely on cloud cover. I'm 8-9hrs from Texas, anywhere in Arkansas, and Missouri so I have a lot of options. I'm going to scope out some hotels near my top locations tomorrow but I'll likely be staying outside of the path and drive to my setup spot early in the morning and wait. I picked a hotel directly in the path during the last one but I had to drive over 2 hours NW the morning of to get out from under the clouds and I luckily got setup 2 minutes before it started. I won't be anywhere near "forecasted" clouds this time.

I don't think another total eclipse will happen in the continental US for 20+ years after April 8th. I'm definitely going to be running two setups, just in case. The benefit of that astrosolar photo film I mentioned is the ability to shoot handheld. So after I shot with my primary setup, I just picked the other one up and rattled off about 15 shots at each 5min interval. I had no intention of using any images from my backup camera, I just had an extra camera and lens so I used them. But due to operator error on the primary setup, the handheld shots turned out better than most of my others. Perhaps you know someone that has a sigma 150-600 or another 400mm lens you might could borrow in April. Just a thought.

You never mentioned if you had an extra crop sensor camera. If not, instead of buying a canon teleconverter or trying the kenko again, I would skip using a TC altogether and buy a used 24mp Canon T6i for $150-200. I feel like this option would give you better image quality than if you used either teleconverter or cropped in on the 5d mk iii from 400mm. You could sell it after the eclipse if you want. (If I wanted to buy a crop body to keep and use for other purposes, I would get a used 80D).

Matt



Nov 05, 2023 at 12:17 AM
AmbientMike
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p.1 #14 · p.1 #14 · 5DmkIII & Kenko teleplus pro plus 300 dg


mdees88 wrote:
I like your taste in color, what filter did you use? That's crazy how it worked fine all the way up until totality. So your totality shot was 400mm on a FF? I guess that image is cropped a good bit too? As of now, I'm planning on shooting 500mm on my FF and either 400mm or maybe 560mm on my crop body (640-896mm effective). I just do not want to be too zoomed in when totality hits and cut off the edges of the corona. Your totality image looks good as far as scale, about as tight as I
...Show more

Looks like Red Slough NWR is on or pretty close to the maximum duration. Peak is more end of April but bird migration is going on then and it's a great birding area so I might go up there. Your super teles could do double duty

Might be some hotels in the smaller towns if Dallas, Austin, and San Antonio are full? Texarkana etc might have something, have you tried sulphur springs, Mt Pleasant, or other random along I-20, I-30, etc? could check locally here if you are interested even Shreveport isn't more than a couple hours or so I'd think

@CosmicCruiser from Memphis I'd be looking at driving NW to Jonesboro, AR or something if hotels are a pain, Memphis isn't really too far off the path of totality. Looks like about 1:27 pm 68° elevation at totality (but double check to be sure.) Hot Springs area might have a good area to view from, lots of camping in the general area, have you tried Little Rock?



Nov 05, 2023 at 10:06 AM
CosmicCruiser
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p.1 #15 · p.1 #15 · 5DmkIII & Kenko teleplus pro plus 300 dg


jcolwell wrote:
It's related to the camera, as much as to the Kenko TC and the lens. Check page 84 of the 5DIII manual:

"With lenses whose maximum aperture is smaller than f/5.6, AF is not possible during viewfinder shooting...".



True but at 400mm isn't f5.6 max?



Nov 05, 2023 at 10:25 AM
TomSchriefer
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p.1 #16 · p.1 #16 · 5DmkIII & Kenko teleplus pro plus 300 dg


I have used various combinations of Canon 100-400v1, 1.4xII, Sigma 150-600C, and Sigma TC-1401. I get better results by NOT using the TC. On FF (6D, 6DII) cropping is better than any TC, but sometimes there isn't much to crop. On APSc (80D, 90D) the bare lens does better than FF w/TC, and I can crop the snot out a 32MP 90D. I no longer own/use any TCs.


Nov 05, 2023 at 10:29 AM
jcolwell
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p.1 #17 · p.1 #17 · 5DmkIII & Kenko teleplus pro plus 300 dg


jcolwell wrote:
It's related to the camera, as much as to the Kenko TC and the lens. Check page 84 of the 5DIII manual:

"With lenses whose maximum aperture is smaller than f/5.6, AF is not possible during viewfinder shooting...".

CosmicCruiser wrote:
True but at 400mm isn't f5.6 max?

When you attach a 1.4x TC to a f/5.6 lens, it becomes a f/8 lens.

(100-400mm f/4.5-5.6) + 1.4x TC = (140-560mm f/6.7-8)



Nov 05, 2023 at 10:32 AM
CosmicCruiser
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p.1 #18 · p.1 #18 · 5DmkIII & Kenko teleplus pro plus 300 dg


AmbientMike wrote:
Looks like Red Slough NWR is on or pretty close to the maximum duration. Peak is more end of April but bird migration is going on then and it's a great birding area so I might go up there. Your super teles could do double duty

Might be some hotels in the smaller towns if Dallas, Austin, and San Antonio are full? Texarkana etc might have something, have you tried sulphur springs, Mt Pleasant, or other random along I-20, I-30, etc? could check locally here if you are interested even Shreveport isn't more than a couple hours or so I'd
...Show more

Matt, My filter is a Thousand Oaks Optical. As for hotels I started with Russellville NW of Little Rock and all rooms were gone. Tried Little Rock and rooms available were very high priced. Searcy was the best of both worlds with rooms around $350/night and a cancellation clause up to the last day and a natural scenery. From MEM it's about 2 ½ hr drive. I'm not planning on using the 6D backup. I got it with 400 activations and it was too good to turn down. May sell it anyway.



Nov 05, 2023 at 10:36 AM
CosmicCruiser
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p.1 #19 · p.1 #19 · 5DmkIII & Kenko teleplus pro plus 300 dg


jcolwell wrote:
When you attach a 1.4x TC to a f/5.6 lens, it becomes a f/8 lens.

(100-400mm f/4.5-5.6) + 1.4x TC = (140-560mm f/6.7-8)


Ahh that' true, so it should still work, right? Or am I missing something



Nov 05, 2023 at 10:37 AM
CosmicCruiser
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p.1 #20 · p.1 #20 · 5DmkIII & Kenko teleplus pro plus 300 dg


TomSchriefer wrote:
I have used various combinations of Canon 100-400v1, 1.4xII, Sigma 150-600C, and Sigma TC-1401. I get better results by NOT using the TC. On FF (6D, 6DII) cropping is better than any TC, but sometimes there isn't much to crop. On APSc (80D, 90D) the bare lens does better than FF w/TC, and I can crop the snot out a 32MP 90D. I no longer own/use any TCs.


Thanks Tom, I'll be using my 5dmkIII and not the 6D. I think you're right about not using it all. Robert



Nov 05, 2023 at 10:39 AM
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