Erik Kaffehr

Hi Bashir, I can send you the wakeup cable, if it is some help... Here is an image with the P45+: https://photos.smugmug.com/Tankworthy/i-q6C2h2T/0/7743b83a/5K/20180606-CF047656-5K.jpg And the same ...

Hi, I don't think I am an X1D basher... But, the images shown could be taken with any camera I have possessed the last half dozen years. Most computer screens are something like 2 MP and 4K is just ...

Hi Bashir, Are you living in UK? The way I see it, it may work. Just to say, I think that Doug may be right in it not being worth the effort. What you would need was a wake up cable and a P-series ...

Hi Bashir, What does Doug Peterson say? I have a P45+ back in V-mount and that would work with an V-mount option that works with a film back, if... If there is a way to synchronise the shutter with ...

Hi Bashir, Bronica sort of passed away before anyone made a digital back for it, as far as I know. Very few could afford the early MFD backs, so it was a very small market. If the Bronica has some ...

Yes, But it is much faster to calculate them than look for technical documentation and find pixel pitch. Best regards Erik

Hi, In that case, if you are shooting a distant subject the pixels on target will be proportional to focal length divided by the pixel pitch. In this case the OP has 420 mm on his 4/3 at 17 MP. We ...

Hi, To calculate megapixels, you would need to square the result. Best regards Erik

Hi Rick, Your sample images and observations are much appreciated! Best regards Erik

Hi, Jim has suggested using Iridients X-transformers with GFX files to avoid GFX specific sharpening in LR, Tinkering around a bit I choose to use RawTherapee as baseline converter. Here are ...

Hi Jim, Your efforts are really appreciated! Best regards Erik

Hi Rick, Slanted edges are very useful to do objective evaluation of lens/sensor performance. Unfortunately they are not easy to test off axis. OpticalLimits do that in their testing, but they ...

Hi, The 63/2.8 actually has a lot of distortion, but it is handled by the raw processing pipeline before applying lens corrections in Lightroom. There is no way of disabling that in LR. You can ...

Hi, Very nice 'bookshelf test'! Great example! Best regards Erik

Hi, Yes, it is about horses for the courses. Or camera gear for the 'use case'. Let's say we use 400 mm lens on a 24 MP APS-C camera, we upgrade to a 24 MP full frame, than we would need an 1.5X ...

Hi, I think it is most about 'pixels on target'. If the OP shoots a moose at 100 m he will get something like 3X more pixels on that moose with his Olympus gear than with his GFX gear. It is quite ...

Hi Jim, Thanks for your comment. In this case I used Dave Coffin's DCRaw for conversion. What I wanted to see was if there was a material difference between the lens/sensor combinations of GFX and ...

Hi Rick, I would suggest that digital correction is a natural part of the digital era of photography. One of the early examples is Hasselblad who started on relaxing some design criteria and ...

Hi, Comparing equivalence factor from GFX (44x33 mm) to 4/3" (18x12 mm) is 12/33 -> 0.364. So your 420/4 on 4/3 corresponds to 1155 mm at 5.6/03.64 -> f/15.4 if you have GF 250/ 4 with 1.4X ...

Hi Rick, It is intended to be food for thought. What it shows, pretty clear, that ACR/Lightroom does apply sharpening, even with sharpening set to zero. This is actually documented behaviour, ...