grasmuc

For comparing the colors of a sensor one needs a high CRI (color rendering index) light source with even spectrum to achieve all colors with high saturation. Suitable is sun light, halogen light ...

I live (mostly) in Guangzhou and only could get one in Hong Kong. But these days a photography shop in Guangzhou offered a new one … but that might not help you. generally the amount of offers new ...

IMO using a digital camera with RGB sensor for BW photography instead of a dedicated camera with BW sensor has two advantages:
1. One can compare and use any color filter setting afterwards in ACR...

I also hoped for either a higher resolution or a stacked sensor with really fast read out. But Fuji does not produce their sensors, they buy from Sony. If Sony does not offer 44x33mm versions of ...

great lens
I use it as perfect trio 24f2, 35f2, 65f2 with S1R
(and add the 17f4 and 105f2.8 macro if larger focal range required)

I had the GFX 100, GFX 50S, 23, 45, 63, 110, 250, 1.4x I sold the GFX 50S (kept everything else) I bought the S1R (2nd. hand), Sigma 17f4, 24f2, 35f2, 65f2, 105f2.8 Macro in order to have a high ...

If the visual impact always looks like your sample and always is in the center of the image, I also very much assume that it comes from a light reflection between the back lens of the Kipon ...

I also will travel to Japan with my S1R. I prefer primes, will take the set of Sigma iC lenses 17f4, 24f2, 35f2, 65f2. All lightweight, nice aperture ring, sharp, 24/ 35/ 65 are pretty fast, all ...

Sorry I never shoot jpg.

My understanding is that the lens stores the distortion correction profile into the exif of the raw image. Therefore it would be independent of the camera. Just the raw converter must be able to ...

The optical image distortion of the Sigma iC 20f2 is stronger than for example the iC 17f4 or the iC 24f2. Also the corner sharpness is worse (w/ and w/o distortions correction applied) compared ...

Mirrorless camera
Stacked sensor in 2436 format with short readout time
eventually 45 MP from Nikon Z9, no requirement for mechanical shutter
Bayer, no AA-Filter
Body slightly larger version of...

I got my Sigma 17f4 today. Did a few tests, looks good to me! Distortion only half of 20f2, 24f2 level, appr. like 35f2. Corner sharpness good already at f4, very good from f5.6, much better than ...

I sent you an email Jonathan Christoph

I assume it’s more difficult to design a super wide angle lens with very high mtf in the corners but the Fujifilm GF 23f4 is an example that shows it is possible.

I opened the files of all lenses without the applied lens correction and the 20f2 has strong barrel distortion. Additionally it is not very sharp in the corners. The correction has to be applied ...

I use a variety of Sigma lenses with my S1R. The general sharpness and the corner sharpness is IMO: 105f2.8 macro, 65f2: excellent 35f2, 24f2: good 20f2: average I was unhappy with the corner ...

I sent you a message Farrell. All best Chris

Depends what’s your priority. Regarding pure image quality the GFX 100 and 50 beat IMO any 135 camera. S1R with Sigma C or Panasonic f1.8 lenses are a lighter setup compared to the GFX but won’t ...

In 2012 I did a little comparison test between Contax N Digital + N 100f2.8 (6MP Philips CCD w/ AA-filter) Leica R8 | DMR + R 60f2.8 Macro (10 MP Kodak CCD w/o AA-filter) Canon 5DII + Zeiss ZE ...