-= 5D Mark IV owners unite! Post photos and discuss.

Heavy dew adorns these tiny, budding flowers, on this warm and foggy morning.

Canon 5D IV - 100mm f/2.8 L IS Macro with Raynox DCR-250 conversion lens.

Photo from txsizzler's gallery.
Image hosted by forum (959496)

Perfectly Frank wrote in post #18803780
I'm curious if anyone has compared the AF performance of the 5D4 with the 7DII, for moving subjects?

I often go out shooting wildlife/BIF with both but I don’t agonize over results very much so consider my comments anecdotal. The 7D2 is great and offers very good and reliable AF which is why it is used by so many wildlife and sports shooters. Nonetheless the AF on the 5D4 is better at acquisition, tracking and accuracy. The gap widens at f/8 max aperture and low light shooting.

Choderboy wrote in post #18803157
20MB pdf covering interview with developers for the new V3 super teles. While discussion in this thread has not been about the new lenses, it's interesting to hear some of the factors that relate to AF speed.

Interviewer: I see, it seems that you’ve achieved high-speed AF.
Nagao: AF speed involves both the fastest focus motor drive speed capable on the lens, and the focusing calculation time on the camera. In bright situations, the focus drive speed of the lens is dominant, and I believe this is why you can see AF speed improvements on the III series 400mm and 600mm super-tele lenses.

Interviewer: What was the key technology for improving AF performance?
Ichinose (Electrical Design): A major point was including the latest microprocessor for improved calculation speed, which also raised the AF control frequency. Although it differs depending on various conditions, this resulted in improved subject tracking during AI servo AF. More microprocessor cores result in smoother parallel processing.
For example, AF performance can be maximized even when the IS mechanism is on. The power management function has been modified for real-time, accurate detection of power used by AF to draw out the maximum performance of the ultrasonic motor (USM). Strictly speaking, this relies on the AF performance of the camera body. However, both the EOS-1D and EOS 5D series benefit from improved AF performance when used with the III series lenses.

http://downloads.canon​.com …iew__CUSA__11-26-2018.pdf

Awesome stuff, sadly I can not get that link to function in any way at all.
I'd love to read the whole thing.

Perfectly Frank wrote in post #18803780
I'm curious if anyone has compared the AF performance of the 5D4 with the 7DII, for moving subjects?

Often, I shoot them both side by side as well, and would agree with nqjudo's assessment.
I can't really say that the 5D4 is noticeably a lot faster, but I do get a better keeper rate, and it does offer the advantages I mentioned earlier that only the 5D4 and 1Dx2 can manage.

7D2 is no slouch, and I get very good results with it too.

This little guy struck a pose for me, this afternoon, in a flower planter.

Canon 5D IV - 100mm f/2.8 L Macro

CyberDyneSystems wrote in post #18804084
Often, I shoot them both side by side as well, and would agree with nqjudo's assessment.
I can't really say that the 5D4 is noticeably a lot faster, but I do get a better keeper rate, and it does offer the advantages I mentioned earlier that only the 5D4 and 1Dx2 can manage.

7D2 is no slouch, and I get very good results with it too.

I often shoot go fast boats with both bodies. The 70-300L on the 7D2 and the 70-200L 2.8 II on the 5D4. Both lock focus quickly and track nicely. The faster shooting rate of the 7D2 is a benefit. I'd say the keeper rate is equal with both from my experience. I'm shooting from a pontoon boat while the go fasts go by at 60 to 90 mph, sometimes so close I can feel the spray

CyberDyneSystems wrote in post #18804081
Awesome stuff, sadly I can not get that link to function in any way at all.
I'd love to read the whole thing.

No problems here with the link, Jake. I put the file on dropbox so you can download it.

https://www.dropbox.co​m …CUSA__11-26-2018.pdf?dl=0

Sea Urchin detail.

Photo from AnnieMacD's gallery.

Chimes on wrought iron railing, on this warm February day.

Canon 5D IV - 100mm f/2.8 L IS Macro.

Photo from txsizzler's gallery.
Image hosted by forum (959547)

txsizzler wrote in post #18804118
This little guy struck a pose for me, this afternoon, in a flower planter.

Canon 5D IV - 100mm f/2.8 L Macro

Hosted photo: posted by txsizzler in
./showthread.php?p=188​04118&i=i98580711
forum: Canon Digital Cameras

Cool looking shot.

txsizzler wrote in post #18804168
Chimes on wrought iron railing, on this warm February day.

Canon 5D IV - 100mm f/2.8 L IS Macro.

Gallery photo (hosted):
posted by txsizzler originally in forum: Macro

Neat looking shot. I like it.

CyberDyneSystems wrote in post #18804084
Often, I shoot them both side by side as well, and would agree with nqjudo's assessment.
I can't really say that the 5D4 is noticeably a lot faster, but I do get a better keeper rate, and it does offer the advantages I mentioned earlier that only the 5D4 and 1Dx2 can manage.

7D2 is no slouch, and I get very good results with it too.

I'll back that as well.

Gorgeous pansies are in bloom here in South Texas. One of the many benefits of living this far south, we have a wide array of flora and other plants that can be grown throughout the year!

Canon 5D IV - 100mm f/2.8 L IS Macro.

CyberDyneSystems wrote in post #18804081
Awesome stuff, sadly I can not get that link to function in any way at all.
I'd love to read the whole thing.

The link is a PDF. You may need to add an add-on to your browser to open that type of PDF with your browser. I know with Firefox the first time you view a PDF, it asks you how you want to view the file. You can select view with Adobe viewer or with the browser. At one time you had to add the PDF viewer to your browser, but after doing many updates, I don't know if you still have to or not.

davinci953 wrote in post #18804137
No problems here with the link, Jake. I put the file on dropbox so you can download it.

https://www.dropbox.co​m …CUSA__11-26-2018.pdf?dl=0

Thank you! Strangely, today the original link is working for me, so it must have been some network oddity. The other day, it would "download" and create a zero byte file with the correct name, but clearly it had not downloaded at all.