flash Offline Upload & Sell: On
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Well, I went on a bit of a spree with some used lenses from Japan. I got a 45-85, 80-160, 120, 150, and 200, This is in addition to the 55mm and 28-45 I got new.
My primary interest is for landscape apertures so that's where I've done most of my testing. And I only have one copy of each, of course.
Firstly I had to calibrate all of them a bit and it made a big difference from being uncalibrated, even at f8/11. I only bought exc++ or better. And I bought all FA versions. So far I've been doing comparisons between these lenses and an equivalent on a Sony A7R2 at infinity. There's not much resolution difference across the frame so I figured it would be a good comparison. I still have a bit to go to get my technique down with the 645Z with regards to camera shake. I'm trying out a small nodal rail to get the weight more over the centre of the tripod, especially with the *mortar* 28-45 and 80-160.
Most of my opinions are the same as here for the lenses I got.
http://thephotofundamentalist.com/?p=2176&page=2
The 80-160 is the weakest of the ones I picked up. It's not great wide open and I see improvements in the centre all the way to f9.5. After that it's very good. At f11 it's not much different to the FE 70-200, which I consider good but not spectacular. It's not as good as the primes I got but fairly good results around f11 to the corners. It really stresses your tripod. Loads of CA at wider apertures which is a major contributor to it's lower performance wider open. In low contrast settings with no real highlights it's a nice lens even at f 5.6.
The 45-85 is a good lens. By f8 I can't really see a difference to the DA55mm or the Sony FE55mm on an A7R2. It's better than the Canon 24-70 f4LIS in the corners with the Canon at its best at f8. Not huge but heavy at a kilo.
The 120mm is really good. Glowy wide open and stupidly thin DOF close up. But at portrait distances and around 4.5 it's already good and really really good by 6.7. Life size macro too. Some CA.
The 150 and 200 I got are also nice lenses. About a half stop behind the fab 120mm. Not a huge amount of testing so far but wonderful at f11 at infinity right to the corners.
So, in all, the only "weak" lens was the 80-160. It's OK but no advantage to a 35mm system. The rest do allow the 645Z to shine, especially when stopped down. I haven't done enough testing at wider apertures yet but will do so over the weekend.
Gordon
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