p.73 #1 · Official: Sony A7 and A7R Fullframe Mirrorless
I have the impression that a high performing 20/2.8 - 24/2.8 for the A7(r) would be quite big ( compared to RF lenses ) and, of course, pricey. Maybe something between f/3.4 or f/4 fits more with Sony's idea of compact and 'relatively affordable' glass for this platform. Zeiss or Sigma might think otherwise, though.
p.73 #2 · Official: Sony A7 and A7R Fullframe Mirrorless
naturephoto1 wrote:
Apparently we are now beginning to hear of deliveries of cameras in Europe. One of the members over at L-camera-forum reported receiving his A7r this morning. He is in London, UK.
Below is from one of the comments from Mr. Jones over at L-camera-forum:
"I'm looking at a lot of raw files here and it's all first impressions but there are a few things standing out. Even at 5.6 the 50/2 vignettes and the problem goes on getting worse with the wider lenses. 28/2.8 has pink edges even at f8. Almost nothing looks M9 sharp at 1:1 view on lightroom. Could be camera shake, I'm shooting say minimum 1/100 for 50mm....Show more →
Setting aside camera shake, it would be hard to expect images to look as sharp at 1:1 compared to an 18MP sensor.
p.73 #4 · Official: Sony A7 and A7R Fullframe Mirrorless
alwang wrote:
Setting aside camera shake, it would be hard to expect images to look as sharp at 1:1 compared to an 18MP sensor.
So if I am understanding this correctly you are suggesting that we should be looking at and comparing the images at identical print size and not comparing the images at 1:1 between the 36MP and the 18MP cameras.
p.73 #5 · Official: Sony A7 and A7R Fullframe Mirrorless
jcolwell wrote:
I have higher expectations.
I'm sure the camera is fully up to the scrutiny. As I previously mentioned, the issue is with that user using 1/100sec hand held with a 50mm lens on a 36MP sensor. All bets are off at that shutter speed when viewing at 100%/ 1:1.
p.73 #6 · Official: Sony A7 and A7R Fullframe Mirrorless
sebboh wrote:
pixel density must be a component of enlargement factor if you are going to look at 100%. if you're just going to look at the same size prints pixel density doesn't for handholding.
Duh. Thank you. You are right of course, and so is Tariq. I don't know how but I forgot about that 100% viewing. (But, then we also have the monitor pixel density coming into play. So here we assume we use the same monitor when looking at all those pixels.)
p.73 #8 · Official: Sony A7 and A7R Fullframe Mirrorless
Tariq Gibran wrote:
I'm sure the camera is fully up to the scrutiny. As I previously mentioned, the issue is with that user using 1/100sec hand held with a 50mm lens on a 36MP sensor. All bets are off at that shutter speed when viewing at 100%/ 1:1.
He goes on in 3 additional comments as well as posting some Flikr images:
"Just managed a side by side comparison in lightroom of a 90/4 macro elmar shot. 30 second exposures, forgot to match the iso exactly but it's base on each camera. (100/160)
It's dark outside and these shots are really only for my own decision making process, so please try to keep the criticism to a minimum. It is what it is. I'm coming to my own conclusions having seen the comparison.
I've uploaded them as jpegs and a few other A7r pics to my Flikr account. I don't use it much so I've no idea whether it's private etc. but my user name on flikr is Mr Andy Jones.
The link is Flickr: Mr Andy Jones' Photostream
Still no idea where to upload raw files but maybe someone would like to let me know the best option."
"It's more like camera shake than focus issues. I think the shutter weight has something to do with it. There is nothing focussed sharply in the whole scene which is what tells me it's shake.
1/250 is giving away a lot of the advantage of the higher iso's. I would say that the tripod 30 second exposures seen up close tell me that the sharpness issue is not all camera shake either. I don't want to describe what I'm seeing because I'm likely to get shot down in flames. Let's just say that I moved from Nikon to Leica to get the look that I'm not seeing with the Sony."
He indicates that things are not focused even on a tripod. That sounds suspect to me.
"I resampled the sony image and created 2 tiny crops from the body of the picture. I'm interested in the reflections along the metal edge.
"Having looked at the resampled file the Sony has the edge on sharpness so part of the problem with pictures appearing sharp has to do with the screen resolution I'm viewing it at etc.
Attached Images"
p.73 #9 · Official: Sony A7 and A7R Fullframe Mirrorless
Tariq Gibran wrote:
I think it's doubtful Sony will release an RX version with a different focal length lens at this point since it would compete somewhat with the A7's. I suspect a 36MP RX1 is next (which, particularly if you don't need the MP's, would allow for cropping to replicate longer focal lengths). The FE 55 appears to be a really exceptional lens and I'm sure some will buy into the A7's just for that lens, when it's available.
If the FE55 is as good or better than the new Nikon 58/1.4G, then I'm totally in!
Tariq Gibran wrote An A7 will never be an RX1 with respect to shooting experience - silent shutter, aperture control on lens, higher build quality, finder options, faster lens yet more compact and so on.
These are the reasons that I'm not letting go of my RX1R!!!
p.73 #12 · Official: Sony A7 and A7R Fullframe Mirrorless
waterden wrote:
Now I have no trouble handholding the NEX-7 and the pixel density on that sensor is similar to that on the A7R. Am I missing something here?
The proper comparison is the NEX-7 to the A7. Pixel density is more of theoretical interest, the real indication of sensitivity to shake is angle per pixel, and for equal MP sensors, this is equal, for equivalent focal lengths.
p.73 #13 · Official: Sony A7 and A7R Fullframe Mirrorless
Tariq Gibran wrote:
I'm sure the camera is fully up to the scrutiny. As I previously mentioned, the issue is with that user using 1/100sec hand held with a 50mm lens on a 36MP sensor. All bets are off at that shutter speed when viewing at 100%/ 1:1.
I don't know, I generally do okay at (1 / 2x focal length) with my D800, although I prefer 2.5x. Of course, the D800 is a much heavier camera, as are the lenses, so maybe there is some kind of harmonic vibration at that shutter speed due to the aggressive shutter and light weight. It is of course still a concern...
p.73 #15 · Official: Sony A7 and A7R Fullframe Mirrorless
ken.vs.ryu wrote:
the sony a9r will have a noise cancelling shutter to quiet up the whining.
But my Sony A7R pre-order already comes with free Sony earplugs to cover the shutter sound
p.73 #16 · Official: Sony A7 and A7R Fullframe Mirrorless
ct8282 wrote:
So no, if you want those focal lengths why would you let a shutter sound put you off buying the A7R which is significantly cheaper than the RX1 and provides much more flexibility?
Simple, because I shoot at quiet and business events where shutter sound like the A7R is frowned upon.
p.73 #17 · Official: Sony A7 and A7R Fullframe Mirrorless
Tariq Gibran wrote:
An RX1 and the A7's compliment one another pretty well as each offers features/ functionality not available in the other. I think there is a pretty strong case to be made for an RX1, particularly if purchased used/ Like new, over the FE 35 and the A7 with other focal lengths. Sony - and users- probably would have benefited with a 24mm or 28mm FE instead of that FE 35 as it would have pushed more RX1 sales AND filled a major wide void with the A7's.
Couldn't agree more. I was hoping for the immediate availability of something like 24mm, 28mm, 50mm and 85mm native FE AF lenses on the A7(R), that would mean immediate jumping into the A7 ecosystem. Don't even get me started on using adapters
p.73 #19 · Official: Sony A7 and A7R Fullframe Mirrorless
jforkner wrote:
I've always wondered why people pre-order anything, especially if it's a technically new and unproven item.
Jack
Simple, because my Sony contact asked me to place a pre-order so that I can do further testing for them.
p.73 #20 · Official: Sony A7 and A7R Fullframe Mirrorless
carstenw wrote:
I don't know, I generally do okay at (1 / 2x focal length) with my D800, although I prefer 2.5x. Of course, the D800 is a much heavier camera, as are the lenses, so maybe there is some kind of harmonic vibration at that shutter speed due to the aggressive shutter and light weight. It is of course still a concern...
That just goes to show you have a steadier hand than me. I don't like to be surprised with soft images so I do tend to overcompensate a tiny bit. I also prefer shooting at F4 or 5.6 so fast shutter speeds in decent light are seldom an issue.
I think the lighter weight of the A7r is going to come into play as well...particularly with it's mouse-trap like sprung shutter.
