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Archive 2013 · A7/A7r - performance with WA RF lenses

  
 
sebboh
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p.46 #1 · A7/A7r - performance with WA RF lenses


in theory this link should be helpful, but it somehow isn't: http://www.dyxum.com/dforum/wide-angle-rangefinder-lenses-on-a7r-part-2_topic102343.html

my conclusions:
1) i have no idea what he was using for a focus point
2) either his m adapter is rather crooked or his m lenses have weird asymmetrical field curvature
3) the cv 12 looks surprisingly decent (for a 12mm lens)
4) the oly 18/3.5 looks like a good performer except in the center




Oct 28, 2013 at 06:07 PM
Phillip Reeve
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p.46 #2 · A7/A7r - performance with WA RF lenses


sebboh wrote:
in theory this link should be helpful, but it somehow isn't: http://www.dyxum.com/dforum/wide-angle-rangefinder-lenses-on-a7r-part-2_topic102343.html

my conclusions:
1) i have no idea what he was using for a focus point
2) either his m adapter is rather crooked or his m lenses have weird asymmetrical field curvature
3) the cv 12 looks surprisingly decent (for a 12mm lens)
4) the oly 18/3.5 looks like a good performer except in the center


I am amazed by the incompetence over there to produce samples which actually tell me something about a lenses performance.



Oct 28, 2013 at 06:09 PM
michaelwatkins
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p.46 #3 · A7/A7r - performance with WA RF lenses


Sony should loan 2 samples of each camera and available lenses to Alt Gear & Lenses thread along with some pre-paid shipping containers and/or a budget to ship them around to five or ten forum members. We can have a poll or election to name names.

Not only would Fred's site generate enormous page views as the masses come here for info, Sony'd get the word out quickly and accurately. Plus a lucky five or ten would get to play.

Ooops, day dreaming will get nowhere.



Oct 28, 2013 at 06:16 PM
shelt
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p.46 #4 · A7/A7r - performance with WA RF lenses


sebboh wrote:
in theory this link should be helpful, but it somehow isn't: http://www.dyxum.com/dforum/wide-angle-rangefinder-lenses-on-a7r-part-2_topic102343.html

my conclusions:
1) i have no idea what he was using for a focus point
2) either his m adapter is rather crooked or his m lenses have weird asymmetrical field curvature
3) the cv 12 looks surprisingly decent (for a 12mm lens)
4) the oly 18/3.5 looks like a good performer except in the center



(Edit) The 35 Summi f/2 shot looks like it's focused a few feet in front of the bridge. The text says it's focused on the bridge, so I assume that's true for the other shots as well.

The bummer is I'm a little surprised to see color shift on this lens...



Oct 28, 2013 at 06:26 PM
douglasf13
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p.46 #5 · A7/A7r - performance with WA RF lenses


Phillip Reeve wrote:
I am amazed by the incompetence over there to produce samples which actually tell me something about a lenses performance.


Yeah, after buying and selling dozens of lenses for NEX and the M9, I found that there are just too many variables to get consistent results from just about anyone, and everyone has different expectations for "acceptable." We really need to just test on our own.



Oct 28, 2013 at 06:40 PM
uhoh7
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p.46 #6 · A7/A7r - performance with WA RF lenses


Phillip Reeve wrote:
I am amazed by the incompetence over there to produce samples which actually tell me something about a lenses performance.


That place. When I first got my Nex I visited. They wanted nothing to do with nex. They explained why: not our sort of users. Too much traffic on the site. Not nice people. Finally they made a sub forum---when the nex-7 was released!


They must be having kittens now, with all the new traffic

Other end of the spectrum is DP, where sturm and drang rule and nobody adds to threads past a certain point--thus same issues come up over and over. Many there are so pissed that their cameras are no longer top of emount line!

FM forever!



Oct 28, 2013 at 06:50 PM
douglasf13
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p.46 #7 · A7/A7r - performance with WA RF lenses


shelt wrote:
The bummer is I'm a little surprised to see color shift on this lens...


It really should be expected. Just about every lens wider than 50mm shows some kind of color shift on the M9, to varying degrees, without the software correction turned on.



Oct 28, 2013 at 06:52 PM
LightShow
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p.46 #8 · A7/A7r - performance with WA RF lenses


uhoh7 wrote:
That place. When I first got my Nex I visited. They wanted nothing to do with nex. They explained why: not our sort of users. Too much traffic on the site. Not nice people. Finally they made a sub forum---when the nex-7 was released!

They must be having kittens now, with all the new traffic

Other end of the spectrum is DP, where sturm and drang rule and nobody adds to threads past a certain point--thus same issues come up over and over. Many there are so pissed that their cameras are no longer top of emount line!

FM forever!

Re: DPR, the endless threads on
"Why are they killing APS-C?"
"Why are they killing NEX?"
"Why are they killing DSLR/DSLT?

Apparently, not everyone uses google or search engines in general.

I avoided DPR for a week after the A7 announcement due to overwhelming possibility that the sky was falling or the world was coming to an end.



Oct 28, 2013 at 07:43 PM
michaelwatkins
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p.46 #9 · A7/A7r - performance with WA RF lenses


LightShow wrote:
Re: DPR, the endless threads on
"Why are they killing APS-C?"
"Why are they killing NEX?"
"Why are they killing DSLR/DSLT?

Apparently, not everyone uses google or search engines in general.


Apparently, not everyone there uses their grey matter!



Oct 28, 2013 at 08:23 PM
uhoh7
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p.46 #10 · A7/A7r - performance with WA RF lenses


LightShow wrote:
Re: DPR, the endless threads on
"Why are they killing APS-C?"
"Why are they killing NEX?"
"Why are they killing DSLR/DSLT?

Apparently, not everyone uses google or search engines in general.

I avoided DPR for a week after the A7 announcement due to overwhelming possibility that the sky was falling or the world was coming to an end.


The place is priceless, really. Huge membership and utterly devoid of moderation. Of course, there are a handful of great guys trying to keep the boat upright, like Henry, who is a total gem.

Here, moderation is outstanding---by other users who know the power of wit.

I'll take those options over the heavy handed rule of mods who also have very strong opinions, which you can see at lots of places. There's a certain place I go where the letter "L" is banned altogether



Oct 28, 2013 at 10:34 PM
philip_pj
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p.46 #11 · A7/A7r - performance with WA RF lenses


I see others have stumbled into Stasiland and the home for mentally deranged space cadets. The wheels have fallen off the clown car over there, the vitriol is something to behold at times.


Oct 28, 2013 at 10:51 PM
ebrandon
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p.46 #12 · A7/A7r - performance with WA RF lenses


Steve Huff's using the Voigt 35mm f1.2 in the real world and the results are very convincing. Hard to tell anything about the corners, but the center looks good! And it can be focused accurately under challenging conditions.

http://www.stevehuffphoto.com/2013/10/28/honky-tonkin-with-the-sony-a7-and-a7r-in-nashville/#comment-262702

UPDATE: Looking at Steve Huff's pictures above, and even more so these http://www.thephoblographer.com/2013/10/28/first-sample-images-sony-a7r-55mm-f1-8/ I think that the images that will come out of Nashville this week are real game-changers.

We may not be able to use every wide RF lens on these cameras, we may be using SLR lenses or even Sony FE lenses, but the A7R especially seems to bring something genuinely new to the table for those of us who have never owned a D800E.



Oct 29, 2013 at 12:10 AM
uhoh7
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p.46 #13 · A7/A7r - performance with WA RF lenses


oh yeah:
http://farm4.staticflickr.com/3798/10550170376_217c54c490_b.jpg



Oct 29, 2013 at 12:19 AM
Spyro P.
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p.46 #14 · A7/A7r - performance with WA RF lenses


^ you stopped worrying about the corners all of a sudden?


Oct 29, 2013 at 12:35 AM
michaelwatkins
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p.46 #15 · A7/A7r - performance with WA RF lenses


Nice. Very Nice.


Oct 29, 2013 at 12:54 AM
edwardkaraa
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p.46 #16 · A7/A7r - performance with WA RF lenses


Yeah, the 35/1.2 shots are awesome, and the color 28/2 shot doesn't have critical color shift, not more than what I would get with the M9 without lens profiles. The A7R looks promising. On the other hand, I found the images from the FE 55/1.8 less interesting rendering wise, even though they are technically faultless. Some would call that a "sterile" or "clinical" rendering, but we need to see more samples to get a clearer idea.


Oct 29, 2013 at 02:15 AM
Makten
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p.46 #17 · A7/A7r - performance with WA RF lenses


edwardkaraa wrote:
On the other hand, I found the images from the FE 55/1.8 less interesting rendering wise, even though they are technically faultless. Some would call that a "sterile" or "clinical" rendering, but we need to see more samples to get a clearer idea.


You mean like the 35/2 Sonnar of the RX1?



Oct 29, 2013 at 04:59 AM
edwardkaraa
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p.46 #18 · A7/A7r - performance with WA RF lenses


Makten wrote:
You mean like the 35/2 Sonnar of the RX1?


Not really. I find the Sonnar photos very appealing. Something to do with bokeh I guess.



Oct 29, 2013 at 05:01 AM
Makten
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p.46 #19 · A7/A7r - performance with WA RF lenses


edwardkaraa wrote:
Not really. I find the Sonnar photos very appealing. Something to do with bokeh I guess.


I think they look very much the same in terms of rendering.



Oct 29, 2013 at 06:04 AM
edwardkaraa
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p.46 #20 · A7/A7r - performance with WA RF lenses


Makten wrote:
I think they look very much the same in terms of rendering.


I hope we see more samples soon. My comments are only related to Steve Huff photos. Surely not enough to judge a lens. I think the Voigtlander 35/1.2 just looked awesome.



Oct 29, 2013 at 06:11 AM
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