ahsanford said:
Luds34 said:
StudentOfLight said:
Me.
I actually traded in my 35/1.4 L for the Tamron 35/1.8 + UV filter.
How do you like it? Can you compare/contrast it with the 35L you got rid of? Do you miss the f/1.4? Is the Tamron usable wide open?
-Thanks
This is OT, but head here for the mother lode of 35mm head to head review work from CR's reviewing partner Dustin Abbott:
http://dustinabbott.net/2016/01/35mm-shootout/
- A
Sorry for not getting back to you guys. With all the 1D-X II and 5D"x" rumors I completely lost track of this one.
I didn't like the 35L/1.4 wide open, and ended up using it more at f/2 or f/2.8most of the time. While sharpness was okay in the center of frame at f/1.4 it was not fantastic. The corners were quite soft at maximum aperture and I didn't like the background blur characteristics, especially when for example shooting with strong highlights filtering through trees. (The edges of the blur circles were harsh.) Chromatic aberration was quite severe as well.
The strength of my 35L was that its autofocus was extremely fast and accurate, however I found that this was not as useful for me at this focal length. When shooting events I generally wanted more depth of field than 35/1.4 offered and more of these low light shots would be shots where I'd have people or groups pose so AF speed was less critical and AF accuracy would be sufficient.
Anyway, so onto the Tamron. Yes, it is usable wide open.
You can pixel-peep the crops on TDP for sharpness:
http://www.the-digital-picture.com/Reviews/ISO-12233-Sample-Crops.aspx?Lens=121&Camera=453&Sample=0&FLI=0&API=2&LensComp=1003&CameraComp=453&SampleComp=0&FLIComp=0&APIComp=0
It also holds up pretty well on the 5DsR and I have no reservations using it on 18-20MP APS-C bodies.
Vignette is low compared to say the 35/2 IS or the f/1.4 lenses at their maximum aperture. For my low light shooting this is an important consideration. If you are shooting at ISO-1600 or ISO-3200 and you need to brighten corners by more than 2 stops then they become extremely noisy. So I highly regard low vignette.
I consider the AF accuracy to be reliable but slow. At least 30-50% slower than the 35L USM.
Then onto the Tamron triple act: Vibration Compensation, close-focus capability and weather sealing. These three combine to make the Tamron a great option for my travel kit. That and the fact that it performs well on both FF and APS-C makes it very versatile.
I've included a comparison with my 60D+35VC and 5D-III+40STM. Remember that my 5D-III loses weather-sealing status when using the 40STM whereas the 60D retains its weather sealing status when the 35VC is attached.
While I love the Tamron for my purposes, it is not a perfect lens. I've already touched on the slow AF speed, but (like the 35L) it also suffers from a purple fringing problem with extreme contrast transitions. Lastly there is one more issue, which I believe is field-curvature related, that I happened to pick up when shooting stars. The tangential and radial planes of sharp focus appear to curve in opposite directions. So If you defocus the stars slightly then astigmatism is increased and you'll render peripheral stars as seagulls or comets depending on which direction you bias focus.
This was my decision for my needs, but I expect others priorities to be different and come to different conclusions on what is workable for them.
p.s. Ideally I'd like to get the 35L II to use for paid work and night sky, but I wont sell the Tamron which I'd still keep for use in a lighter travel kit and for casual shooting.