Fred Miranda wrote: rji2goleez wroteOvernight battery test - Sony OEM started at 95% ended at 95%.That's what I'm getting. Zero drain. I'm also only using OEM batteries.
Thanks Fred. When the A7r was first available I noticed some excellent cityscapes on GetDPI by Michiel Schierbeek (alias sculptormic on fredmiranda) shot with this lens. As the lens was pretty inexpensive I got one from eBay, but never evaluated it thoroughly or shot a lot of images with it. So, I am really not knowledgable enough to address your questions. Sorry about that.
Hmmm.. I just noticed one problem. With Leica 50/2 apo, I took some pictures with f2 and f8 at hard stop infinity and the picture of the skyline was perfectly sharp with CV adapter. Switched to Techart, at f8, focusing at a building on the horizon, picture was perfectly sharp with no difference than using CV adapter but at f2, Techart was struggling to focus quite a bit (pretty much anything below f4 actually) and when it eventually focused and I could take a picture, the whole frame was much much softer ( not so well focus). I used tripod and cable release to test this on 2 separate days. I am at work now so I cannot post picture but can do it tonight when I get back home but just wonder if anybody else has any problem with focus wide open at inifinity or near infinity distance? In the past at closer range, I never notice any problem with 50/2 apo.
suteetat wrote:
Hmmm.. I just noticed one problem. With Leica 50/2 apo, I took some pictures with f2 and f8 at hard stop infinity and the picture of the skyline was perfectly sharp with CV adapter. Switched to Techart, at f8, focusing at a building on the horizon, picture was perfectly sharp with no difference than using CV adapter but at f2, Techart was struggling to focus quite a bit (pretty much anything below f4 actually) and when it eventually focused and I could take a picture, the whole frame was much much softer ( not so well focus). I used tripod and cable release to test this on 2 separate days. I am at work now so I cannot post picture but can do it tonight when I get back home but just wonder if anybody else has any problem with focus wide open at inifinity or near infinity distance? In the past at closer range, I never notice any problem with 50/2 apo....Show more →
arduluth wrote: suteetat wroteHmmm.. I just noticed one problem. With Leica 50/2 apo, I took some pictures with f2 and f8 at hard stop infinity and the picture of the skyline was perfectly sharp with CV adapter. Switched to Techart, at f8, focusing at a building on the horizon, picture was perfectly sharp with no difference than using CV adapter but at f2, Techart was struggling to focus quite a bit (pretty much anything below f4 actually) and when it eventually focused and I could take a picture, the whole frame was much much softer ( not so well focus). I used tripod and cable release to test this on 2 separate days. I am at work now so I cannot post picture but can do it tonight when I get back home but just wonder if anybody else has any problem with focus wide open at inifinity or near infinity distance? In the past at closer range, I never notice any problem with 50/2 apo.Are these night images, or bright light?
4pm 2 days ago and 7.30 am this am. With f2, EV 0,iso100 shutter speed was 1/4000 this morning when I tried.
With 50/2 apo @f8 and Techart Adapter, the whole picture.
Corner and center pictures are 100% cropped no resize. Color is a bit different as they are taken about 30 minutes apart in the morning.
Fred, so for your Contax lens, you use contax to Leica M adapter + Techart? I am thinking about using it with Contax 85mm 1.4 and buy A7ii to replace my original A7. Will that lens be too heavy for the motor? I am not familiar with the 100-300mm but I am guessing it must be heavier than the 85mm. Thanks Fred.
fsiagian wrote:
Fred, so for your Contax lens, you use contax to Leica M adapter + Techart? I am thinking about using it with Contax 85mm 1.4 and buy A7ii to replace my original A7. Will that lens be too heavy for the motor? I am not familiar with the 100-300mm but I am guessing it must be heavier than the 85mm. Thanks Fred.
Yes, adapter on adapter.
The 100-300/4.5-5.6 is 925 grams + CY-M adapter + TechArt (135g), so it's not light.
It works fine if you hold the lens and let the adapter do the focusing. (Same for the 6.6-pound 200/1.8L)
On that section it is sharper but on other images the areas with the use of the adapter are clearly sharper. Maybe I missed what was being focussed on.
Fred Miranda wrote:
Yes, adapter on adapter.
The 100-300/4.5-5.6 is 925 grams + CY-M adapter + TechArt (135g), so it's not light.
It works fine if you hold the lens and let the adapter do the focusing. (Same for the 6.6-pound 200/1.8L)