T
the scanner-guy
Guest
Hi, I'm new in this forum, but I used to look in the medium format section without posting, probably for years...
I recently bought the Sony A55 because I didn't have any "serius" digital camera(only some compact camera, and for the good pictures I used MF film) and I had to have one with stabilized sensor because I have a lot of old lenses and I wanted to use them for photo and video work.
So, as I always do with all my equipment, I tested the camera with the "ISO 12233" resolution chart, with the kit lens and another lens, at various apertures, various ISOs, various focal lengths, etc..
The chart is laser printed on 4 A3 paper sheets, and I was shooting outside with a Manfrotto 058b and 410 head: the non uniform light is set on purpose, to show the differences on grey gradient at various ISOs. Also the small portion of visible background works for the same reason.
I used "JPG fine" capture because I want to shoot jpg with this camera, so I needed to see how's the moire effect in all the situations.
All the shots were only adjusted in CS5 to match the light level (curves tool), and saved with quality settings at "8".
This is the test with the kit lens, at 18mm and 55mm, each one at three different apertures, and always ISO100:
18mm f/3.5
18mm f/5.6
18mm f/22
55mm f/5.6
55mm f/22
55mm f/35
now the same test but with an old strange lens: a Schneider Componon 150mm f/5.6: it's an enlarger lens and covers 4x5 format. I mounted it using macro bellows and various adapters.
f5,6
f11
f22
f45
I recently bought the Sony A55 because I didn't have any "serius" digital camera(only some compact camera, and for the good pictures I used MF film) and I had to have one with stabilized sensor because I have a lot of old lenses and I wanted to use them for photo and video work.
So, as I always do with all my equipment, I tested the camera with the "ISO 12233" resolution chart, with the kit lens and another lens, at various apertures, various ISOs, various focal lengths, etc..
The chart is laser printed on 4 A3 paper sheets, and I was shooting outside with a Manfrotto 058b and 410 head: the non uniform light is set on purpose, to show the differences on grey gradient at various ISOs. Also the small portion of visible background works for the same reason.
I used "JPG fine" capture because I want to shoot jpg with this camera, so I needed to see how's the moire effect in all the situations.
All the shots were only adjusted in CS5 to match the light level (curves tool), and saved with quality settings at "8".
This is the test with the kit lens, at 18mm and 55mm, each one at three different apertures, and always ISO100:
18mm f/3.5
18mm f/5.6
18mm f/22
55mm f/5.6
55mm f/22
55mm f/35
now the same test but with an old strange lens: a Schneider Componon 150mm f/5.6: it's an enlarger lens and covers 4x5 format. I mounted it using macro bellows and various adapters.
f5,6
f11
f22
f45
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