and 55mm wide lens.According
to my tests on a Sony A7 it seems to be a little bit longer. 55mm would
be 30mm small format wide equivalent.
The viewer has bright frame lines.
55mm wide, F8, 1/60s, sharpness o.k., a hint of colour cast, a bit of vignetting to the left which would not appear on 120 film.
55mm wide on 35mm film, F8, 1/60s, sharpness o.k., a hint of colour cast, shallow depth of field.
The 55mm len comes with a close-up attachment.
attachment on lens. According to Lomography the lens has to be set to
infinity and will focus at a distance of 15 (!) cm approx. There is no
framing aid, you have to judge.
Just for the record, here are the pictures taken with the 75mm standard lens (see Diana main page):
75mm standard, F8, 1/60s, good sharpness.
75mm standard on 35mm film, F8, 1/60s, good sharpness.
110mm tele soft lens and instructions sheet.
Camera and 110mm soft lens. As the name says, it only produces soft
to my tests on a Sony A7 it seems to be longer. 110mm would be 60mm
small format equivalent.
Camera and telephoto lens.
110mm soft telelens, F8, 1/60s, blurry or soft, as indicated, colour cast, vignetting.
110mm soft telelens on 35mm film, F8, 1/60s, hazy or soft, as indicated, heavy colour cast. There are adapters to be able to use the diana lenses an small format SLR cameras. I came across the Canon model.
The adapter and a Diana lens.
The adapter unpacked.
Adapter and lens.
tried all the lenses on a Sony A7 camera via a Canon adapter which
worked well with Canon lenses. It was an enormous deception. Most of
the lenses don't focus at all. Obviously the focal length of the
adapter is not right. I also tried on a Canon camera with the same negative
results. The second problem is the missing diaphragm. Ordinary lenses
have a diaphragm, a Diana has the diaphragm on the body. The adapter hole is bigger than the largest F-stop. There should
be a diaphragm in the adapter. Maybe I will try a DIY solution later.
The 75mm standard lens pictures show that there are nice capabilities
of portrait pictures with a wonderful bokeh. If you want to see the
pictures of my tests,they are here. The link will open in a new window.
is a lot of discussion on the web how to judge the correct exposure for
each lens. As the diaphragm is on the body, it's the same diameter for
all the lenses. But shorter lenses bring much more light than longer
ones unless the longer ones have enormous lenses to collect the light,
which isn't the case on the Diana. As I mentioned, I don't calculate, I
guess roughly and shoot.
But if you want to have an idea about this problem, I found the following guesses about the exposure value equivalents: