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Official: Sony A7 and A7R Fullframe Mirrorless
  
 
Jman13
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p.189 #1 · p.189 #1 · Official: Sony A7 and A7R Fullframe Mirrorless


That's because DxO isn't an optical bench bet a system bench (which makes it useless for lenses.) overall scores are also stupidly evaluated, with transmission being an 'absolute' quantity...so fast lenses almost always score better than slower lenses, even if they're not as good. DxO's lens tests are about as close to worthless as they come, IMO.

FlyPenFly wrote:
Quite correct sir. Using that tool, all the Nikon and Canon 35mm on full frame do terribly compared to the the FE 35mm F2.8.




Apr 13, 2014 at 05:28 PM
FlyPenFly
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p.189 #2 · p.189 #2 · Official: Sony A7 and A7R Fullframe Mirrorless


Jman13 wrote:
so fast lenses almost always score better than slower lenses


It seems in the linked tests, the FE 35 spanks everyone but the FE 55. I have to think though this has to be because of the A7R.



Apr 13, 2014 at 05:31 PM
Samuli Vahonen
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p.189 #3 · p.189 #3 · Official: Sony A7 and A7R Fullframe Mirrorless


FlyPenFly wrote:
Quite correct sir. Using that tool, all the Nikon and Canon 35mm on full frame do terribly compared to the the FE 35mm F2.8.

Alternative for Contax; I haven't seen MTFs etc. but Canon FD 35mm f/2 S.S.C. is cheaper and from resolution perspective I would estimate it is as good or better than Contax 2.8/35. Of course I have no first hand experience or measuring data from FD, so this is just based on experience of Contax MTF-charts and what I have seen in practice with shooting with FD. In addition FD is one stop faster.

Samuli



Apr 13, 2014 at 05:36 PM
FlyPenFly
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p.189 #4 · p.189 #4 · Official: Sony A7 and A7R Fullframe Mirrorless


Thanks, will look into it. Prices seem to wildly vary, is there something specific to look for besides overall condition and the red SSC lettering?


Apr 13, 2014 at 05:42 PM
Samuli Vahonen
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p.189 #5 · p.189 #5 · Official: Sony A7 and A7R Fullframe Mirrorless


FlyPenFly wrote:
Thanks, will look into it. Prices seem to wildly vary, is there something specific to look for besides overall condition and the red SSC lettering?

I'm not much of an FD-lens expert, my store had 3 different and I picked the one looked worst because it seemed was optically same and the worst looking was 40EUR cheaper. I guess I would be looking for that it's mechanically (half of my FD-lenses I had to glue to adapter as they had way too much "play" because mount was so worn out) and optically OK.

Before purchasing I googled and as far as I understood there is only one version:
http://www.mir.com.my/rb/photography/companies/canon/fdresources/fdlenses/earlyfdlenses/35mmfd.htm

Samuli



Apr 13, 2014 at 05:52 PM
triniart
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p.189 #6 · p.189 #6 · Official: Sony A7 and A7R Fullframe Mirrorless


My zeiss 55 1.8 on A7R test for decentering. This was at f 2.8 indoor. Results same at for outdoor tests.
Pretty consistent with what others have had, i.e left side is decentered.
Some have said their lens is perfect, so I will return mine in anticipation that I
can also get a perfect or near perfect one.

Zeiss55Test by Photos by Arthur Sukhbir, on Flickr



Apr 13, 2014 at 07:10 PM
Dpedraza
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p.189 #7 · p.189 #7 · Official: Sony A7 and A7R Fullframe Mirrorless


Has anyone used the vc 20mm 3.5 on the a7/r?


Apr 16, 2014 at 01:19 AM
JaanOs
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p.189 #8 · p.189 #8 · Official: Sony A7 and A7R Fullframe Mirrorless


FlyPenFly wrote:
Thanks, will look into it. Prices seem to wildly vary, is there something specific to look for besides overall condition and the red SSC lettering?


There should be actually 2 versions among FD 35mm f2 with SSC bit different type front element (concave or convex) as well older version so called "Radioactive Lens" containing Thorium.
http://www.lummukka.com/canonfd35.html

Honestly I have no glue if there difference in optical performance with digital sensor, concave or convex
Some sources swear the magical one is earlier concave version.




Apr 18, 2014 at 01:52 AM
DavidBM
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p.189 #9 · p.189 #9 · Official: Sony A7 and A7R Fullframe Mirrorless


FlyPenFly wrote:
This does not look too great.




Its crucial how you interpret those charts.
SLR gear are not reporting absolute resolution; what that chart shows is that wide open the FE 35 is 3 "blur units" worse in the corners than it's best performance.

But it's best performance is extraordinary; so 3 blur units worse is still outstanding.

Problem: the chart looks worse than a lens/sensor system whose peak resolution is much worse, and whose corners are much worse in absolute terms.



Apr 18, 2014 at 05:33 AM
phuviano
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p.189 #10 · p.189 #10 · Official: Sony A7 and A7R Fullframe Mirrorless


Any know if theres a way to create a shortcut to turn the "AF assist light" on/off. I thought i would be to add it to the function menu (the menu that shows up when you hit the function button). I tried to look to see if i could add it as a custom function button (c1,c2,c3). I couldnt figure out a way to do it, besides diving through the menu every time.

Maybe there isnt a way to do this. However, if someone has figured out an easier/faster way yo activate the AF assist, please let me know.

Thanks.



Apr 21, 2014 at 04:11 AM
 

Search in Used Dept. 



ken.vs.ryu
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p.189 #11 · p.189 #11 · Official: Sony A7 and A7R Fullframe Mirrorless


I don't think there is a way. The best way would be to keep it under the Menu button since it remembers the last location.


Apr 21, 2014 at 12:26 PM
akuba
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p.189 #12 · p.189 #12 · Official: Sony A7 and A7R Fullframe Mirrorless


Does anyone have a recommendation for a Canon FD to Sony FE adapter that they're happy with?


Apr 29, 2014 at 05:26 AM
bhairavp
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p.189 #13 · p.189 #13 · Official: Sony A7 and A7R Fullframe Mirrorless


Anyone using Pentax K-Mount lenses on these bodies? Would love to see some photos from them,thanks.


Apr 29, 2014 at 06:23 AM
Donsantos
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p.189 #14 · p.189 #14 · Official: Sony A7 and A7R Fullframe Mirrorless


I have the concave fd 35mm f2 ssc version. Look for f/16 minimum aperture.

Optically it's very superb. As sharp as my 55mm 1.8 wide open. I might even say it has more contrast than the 55mm 1.8 FE. Bokeh looks great too.

The only downside it's a bit big and heavy and doesn't fit in my bag very well with other lenses. I have a dome 5xb.



Apr 29, 2014 at 06:33 AM
Mark Rigsby
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p.189 #15 · p.189 #15 · Official: Sony A7 and A7R Fullframe Mirrorless


Yay, went to update my firmware in my A7, half way through the process my camera bricked. Off to Sany we go...yay!!!!!!


Apr 29, 2014 at 06:35 AM
pixelreaper
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p.189 #16 · p.189 #16 · Official: Sony A7 and A7R Fullframe Mirrorless


akuba wrote:
Does anyone have a recommendation for a Canon FD to Sony FE adapter that they're happy with?


It's expensive, but the Novoflex adaptor is awesome. no issues with misallignments from the adaptor as is machined out of a single chunk of aluminum. I highly recomend using it with the ultra-sensitive A7r. I get awesome results with my FDn 20mm f/2.8.



Apr 29, 2014 at 01:53 PM
rhZhao
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p.189 #17 · p.189 #17 · Official: Sony A7 and A7R Fullframe Mirrorless


I have not decided if I should get an A7R or a Leica M. I do have a M3 and 50 F2 M lens, but they could also be used on the A7R. I know Leica belongs to a higher level, but I am not sure if the price worth that.


Apr 29, 2014 at 10:08 PM
DamonJoyce
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p.189 #18 · p.189 #18 · Official: Sony A7 and A7R Fullframe Mirrorless


akuba wrote:
Does anyone have a recommendation for a Canon FD to Sony FE adapter that they're happy with?


I've got the Ciecio7 adapter. Like the Novoflex, it's made from a solid billet of aluminum. It looks a little funky, but it's a perfect fit, and only $50 or so.



Apr 30, 2014 at 12:19 PM
retrofocus
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p.189 #19 · p.189 #19 · Official: Sony A7 and A7R Fullframe Mirrorless


DamonJoyce wrote:
I've got the Ciecio7 adapter. Like the Novoflex, it's made from a solid billet of aluminum. It looks a little funky, but it's a perfect fit, and only $50 or so.


I am using the Fotasy adapter - also brass metal, well made. I am currently using it with 4 FD lenses, so far no problems and photos are all centered and sharp.



Apr 30, 2014 at 04:40 PM
Jeff Kott
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p.189 #20 · p.189 #20 · Official: Sony A7 and A7R Fullframe Mirrorless


rhZhao wrote:
.... I know Leica belongs to a higher level.....


What do you mean?



Apr 30, 2014 at 04:50 PM
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