Threads
Canon RF 14-35mm f/4L IS USM to be one of the next lenses announced
- By Canon Rumors
- Lenses
- 131 Replies
Extenders on RF 100-500mm, RF 800mm and EF 400mm DO II
- By AlanF
- Canon Lenses
- 16 Replies
The-Digital-Picture does nice IQ tests with charts but they are all at different distances so that the image fills the frame. I want to know how different telephotos perform and resolve details on a chart at a fixed distance away. Here is a collection of tests I have done for various lenses on the R5. The chart, courtesy of Bob Atkins, is only 13.6cm across, about the size of a small bird. The numbers on it are line pairs per mm. The distance was 20m, which means tests were performed outside in natural light that varied over time. I also used a standard laser printer for the chart and so the lines are not at high resolution - irregularities can be detected at pixel level peeping. Even so, you can get a good idea of how the lenses and extenders perform.
John has done an analysis with some high resolution charts.
And I have done some earlier comparisons.
www.canonrumors.com
John has done an analysis with some high resolution charts.
And I have done some earlier comparisons.
RF 100-500mm vs EF 100-400mm II + EF-ER adapter
It looks like I will be getting next week an R5. I do have two very good copies of the 100-400mm II + 1.4 and 2xTCIIIs and was intending to use one of those. I do have the opportunity of buying an RF 100-500mm, which is a serious outlay, especially with the high cost of RF extenders. I'd love to...
www.canonrumors.com
The sensor in the upcoming Canon EOS R3 is designed and manufactured by Canon
- By Canon Rumors
- EOS Bodies
- 146 Replies
Canon R6 Screen/Viewfinder Settings
- By djhonda
- EOS Bodies
- 1 Replies
Hey Guys,
I got my R6 today and was setting it up, mostly successful but I can't figure out one thing: how do I set up the back screen to only work (or come to life if you will) when prompted by pressing "Menu" or playback buttons? Is it doable? Basically I want only Viewfinder to work all the time and the screen only after pressing "Menu" or playback. How do I do this?
I know I can flip back the screen but I want to have this possibility to use it only when prompted.
Thanks,
P.
I got my R6 today and was setting it up, mostly successful but I can't figure out one thing: how do I set up the back screen to only work (or come to life if you will) when prompted by pressing "Menu" or playback buttons? Is it doable? Basically I want only Viewfinder to work all the time and the screen only after pressing "Menu" or playback. How do I do this?
I know I can flip back the screen but I want to have this possibility to use it only when prompted.
Thanks,
P.
Canon R5 backfocus.
finally i confirmed my R5 is backfocusing
i know Mirrorles shouldn't do that but probably it's a slightly sensor missalligment.
Firstly i noticed using my Sigma 35mm f1.4, Eye autofocus was locking on eye, but reviewing pictures sharpest point was ears. I updated FW, issue mostly dissapeared but still slightly exist. Then i adapted my old Tamron 150-600 i was getting missed shots when distance was greater. I've done many tests including rulers, on 20m distance was missing not by much (around 1-2cm back) But for greater distances 60m> focus sometimes was missing by meter or more. I was blaming old lens, requiring FM update (need's sending to service). I connected Sigma issue to Tamron and simply i thought it's just a lens but recently i sold Tamron and picked up Sigma Sport 150-600, and what a surprise... Same issue, slightly less than T but issue persist then i also tested rest of my lenses.
EF 70-200 2.8 IS mk1. Same small backfocus on every locked point on greater distances.
EF16-35 III. Hardest to spot as this lens have bigger dof, but after locking AF on subject, small pull on focus ring makes subject slightly sharper.
Sigma 35mm f1.4 - giving best results so far after update, very small backfocus really hard to justify. but exists.
On EVERY lens and after every focus confirm pulling back focus ring slightly makes subject tiny bit sharper
Also what i've noticed is all lenses are not focusing back to MFD's (always red square) but can focus from pulling back manually, also Focus bracketing when reach infinity still makes 3-4 extra shots for no reason, that's also giving proof sensor don't match with focusing.
I made this thread in few R5 FB groups to find people with simmilar results and maybe sollution to this?
i know Mirrorles shouldn't do that but probably it's a slightly sensor missalligment.
Firstly i noticed using my Sigma 35mm f1.4, Eye autofocus was locking on eye, but reviewing pictures sharpest point was ears. I updated FW, issue mostly dissapeared but still slightly exist. Then i adapted my old Tamron 150-600 i was getting missed shots when distance was greater. I've done many tests including rulers, on 20m distance was missing not by much (around 1-2cm back) But for greater distances 60m> focus sometimes was missing by meter or more. I was blaming old lens, requiring FM update (need's sending to service). I connected Sigma issue to Tamron and simply i thought it's just a lens but recently i sold Tamron and picked up Sigma Sport 150-600, and what a surprise... Same issue, slightly less than T but issue persist then i also tested rest of my lenses.
EF 70-200 2.8 IS mk1. Same small backfocus on every locked point on greater distances.
EF16-35 III. Hardest to spot as this lens have bigger dof, but after locking AF on subject, small pull on focus ring makes subject slightly sharper.
Sigma 35mm f1.4 - giving best results so far after update, very small backfocus really hard to justify. but exists.
On EVERY lens and after every focus confirm pulling back focus ring slightly makes subject tiny bit sharper
Also what i've noticed is all lenses are not focusing back to MFD's (always red square) but can focus from pulling back manually, also Focus bracketing when reach infinity still makes 3-4 extra shots for no reason, that's also giving proof sensor don't match with focusing.
I made this thread in few R5 FB groups to find people with simmilar results and maybe sollution to this?
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