woorob Posted February 7, 2014 Share #4281 Posted February 7, 2014 Advertisement (gone after registration) My results using the WATE 16-18-21 on the a7R have been excellent, no problems at all even under critical scrutiny. By the way, I really enjoy your bird pictures. The birds themselves are quite pretty, what kind are they and where are the pictures taken? Do you place your 350 on a tripod inside the house and then shoot through the window glass? Just wondering, as I'd like to get some really nice bird shots like these myself. Thanks for posting them! Link to post Share on other sites More sharing options...
Advertisement Posted February 7, 2014 Posted February 7, 2014 Hi woorob, Take a look here The Sony A7 thread [Merged]. I'm sure you'll find what you were looking for!
JimKasson Posted February 7, 2014 Share #4282 Posted February 7, 2014 My results using the WATE 16-18-21 on the a7R have been excellent, no problems at all even under critical scrutiny. That's been my experience also: Sony a7R testing, part 29 | The Last Word Sony a7R testing, part 30 | The Last Word If you take a look at the length of lens, you can see that it's a retrofocus design. I think that helps on the a7R. And isn't it nice to be able to use the focal lengths between the click stops? A feature shared with the M240. Jim Link to post Share on other sites More sharing options...
Guest polygamer Posted February 7, 2014 Share #4283 Posted February 7, 2014 My results using the WATE 16-18-21 on the a7R have been excellent, no problems at all even under critical scrutiny. By the way, I really enjoy your bird pictures. The birds themselves are quite pretty, what kind are they and where are the pictures taken? Do you place your 350 on a tripod inside the house and then shoot through the window glass? Just wondering, as I'd like to get some really nice bird shots like these myself. Thanks for posting them! Hi, thank you for your friendly comments on my modest efforts. --- O.K., so, the WATE is perfect. Good to know ... The bird pictures I take using a relaxed wildlife photography approach. I sit at my dining room table (in any weather), with a few cameras focused on the bird-walk of the feeding place and the railing. The pictures are taken through the garden-door window-pane (around 2 meters from the table) of the feeding place (around 4 meters total distance). Because I do not use AF tele-lenses I must control the movement of the animals by serving food only in the little house. When they come, and land, I take a series of pictures, a few of which are worth keeping (with luck). I live in a semi-rural area near Mainz/Germany. So, typically my visitors are sparrows, doves, bluetits, greattits, finches and jays. Occasionally, squirrels, wood-mice and garden dormice ( protected species) come. So this is a setup: Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! ' data-webShareUrl='https://www.l-camera-forum.com/topic/214267-the-sony-a7-thread-merged/?do=findComment&comment=2527799'>More sharing options...
Guest polygamer Posted February 7, 2014 Share #4284 Posted February 7, 2014 And pictures like this I take. I am expecting the squirrels to come again as soon as the building activities in the neighbourhood are finished. Have a nice weekend! Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! ' data-webShareUrl='https://www.l-camera-forum.com/topic/214267-the-sony-a7-thread-merged/?do=findComment&comment=2527805'>More sharing options...
gyoung Posted February 7, 2014 Share #4285 Posted February 7, 2014 That looks like a 180/2.8 Nikkor ED over to the left, I got one last year and I have been amazed how good it is, although I suppose I shouldn't say so here And your pictures are great, we have a similar set up with feeders hung on the apple tree outside the window. I must get my finger out and try some. Gerry Link to post Share on other sites More sharing options...
k-hawinkler Posted February 7, 2014 Share #4286 Posted February 7, 2014 Hi, thank you for your friendly comments on my modest efforts. --- O.K., so, the WATE is perfect. Good to know ... The bird pictures I take using a relaxed wildlife photography approach. I sit at my dining room table (in any weather), with a few cameras focused on the bird-walk of the feeding place and the railing. The pictures are taken through the garden-door window-pane (around 2 meters from the table) of the feeding place (around 4 meters total distance). Because I do not use AF tele-lenses I must control the movement of the animals by serving food only in the little house. When they come, and land, I take a series of pictures, a few of which are worth keeping (with luck). I live in a semi-rural area near Mainz/Germany. So, typically my visitors are sparrows, doves, bluetits, greattits, finches and jays. Occasionally, squirrels, wood-mice and garden dormice ( protected species) come. So this is a setup: Excellent setup. I recognize some of your cameras and lenses. Could you please list them. Thanks in advance. Link to post Share on other sites More sharing options...
Guest polygamer Posted February 7, 2014 Share #4287 Posted February 7, 2014 Advertisement (gone after registration) Excellent setup. I recognize some of your cameras and lenses.Could you please list them. Thanks in advance. O.K., I hope they won't throw me out of this forum. The camera and lens arrangement changes - according to my whims ... But here we have (from left to right): NEX-3, Nikkor 4,5/300 NEX-3, Nikkor 2,8/180 ED NEX-3, Leica Elmarit-M 2,8/90 NEX-5N, Minolta MD 4,5/300 NEX-6, Leitz Tele-Elmar 4/135 NEX-5N, Leitz Telyt R 6,8/400 But, as I said, I change gear frequently. On the A7, I presently use the Leitz Telyt R 4,8/350 most of the time. (And for the moderators: I have many more Leica lenses and an M9 ...) Link to post Share on other sites More sharing options...
jmahto Posted February 7, 2014 Share #4288 Posted February 7, 2014 O.K., I hope they won't throw me out of this forum. The camera and lens arrangement changes - according to my whims ... But here we have (from left to right): NEX-3, Nikkor 4,5/300 NEX-3, Nikkor 2,8/180 ED NEX-3, Leica Elmarit-M 2,8/90 NEX-5N, Minolta MD 4,5/300 NEX-6, Leitz Tele-Elmar 4/135 NEX-5N, Leitz Telyt R 6,8/400 But, as I said, I change gear frequently. On the A7, I presently use the Leitz Telyt R 4,8/350 most of the time. (And for the moderators: I have many more Leica lenses and an M9 ...) Excellent.... I have the 135 and 400 myself which I enjoy on NEX6. I specially like shooting birds in flight using 400mm Telyt. Couple of pics in my flickr page. Quick question. Why is your 400 Telyt lens rotated 90degrees? For portrait mode shooting? Link to post Share on other sites More sharing options...
Guest polygamer Posted February 7, 2014 Share #4289 Posted February 7, 2014 Quick question. Why is your 400 Telyt lens rotated 90degrees? For portrait mode shooting? Hi, I found it easier to focus that way, when camera and lens are on my diningroom-table. Link to post Share on other sites More sharing options...
woorob Posted February 7, 2014 Share #4290 Posted February 7, 2014 Many thanks, and how fun! Photography can be such a wonderful hobby, there are so many different ways of expressing one's interests. A pileated woodpecker visits my bird feeding station every so often, and I'd love to get a picture of him that's for sure. A magnificent, large bird. Pileated Woodpecker | National Audubon Society Birds My brother has taken up photography again in a big way, and recently purchased an M, an a7R and some lenses. It's opened a whole new world of interest for him. I'm hoping that my daughters get the bug as well. Great squirrel picture BTW. Link to post Share on other sites More sharing options...
jmahto Posted February 7, 2014 Share #4291 Posted February 7, 2014 Hi, I found it easier to focus that way, when camera and lens are on my diningroom-table. Thanks. I never thought of that. Will try next time. I also find shooting birds in my backyard very therapeutic. I keep sipping my favorite drink in a relaxed chair with 400mm Telyt+NEX6 on the side. Since I am not moving much, birds start ignoring me and come closer than usual. I was surprised by how many different species of birds visited my backyard !! Enjoy your weekend. Link to post Share on other sites More sharing options...
k-hawinkler Posted February 12, 2014 Share #4292 Posted February 12, 2014 diglloyd blog - Sony’s 11+7-bit Delta Compression, Posterization in Some Situations Link to post Share on other sites More sharing options...
JimKasson Posted February 16, 2014 Share #4293 Posted February 16, 2014 diglloyd blog - Sony’s 11+7-bit Delta Compression, Posterization in Some Situations Confirmed with simulation: Does Sony raw compression damage images? | The Last Word A worst-case simulation?: A tough test of Sony raw compression | The Last Word With real-world noise added: Simulating Sony raw compression with photon noise | The Last Word I still need to work on identifying worst-case test images, and determining what post-processing causes the artifacts to be visible. I have not found a case where they're visible (to these old eyes, at least) with no post-processing. Jim Link to post Share on other sites More sharing options...
k-hawinkler Posted February 16, 2014 Share #4294 Posted February 16, 2014 Confirmed with simulation: Does Sony raw compression damage images? | The Last Word A worst-case simulation?: A tough test of Sony raw compression | The Last Word With real-world noise added: Simulating Sony raw compression with photon noise | The Last Word I still need to work on identifying worst-case test images, and determining what post-processing causes the artifacts to be visible. I have not found a case where they're visible (to these old eyes, at least) with no post-processing. Jim Thanks Jim. Much appreciated. I wonder how the M9 lossy compression would behave for your test images. Since release of the M9 I think I have seen just one example on this forum that demonstrated a bit of a difference between the two representations, ignoring extreme pixel peeping. Link to post Share on other sites More sharing options...
JimKasson Posted February 16, 2014 Share #4295 Posted February 16, 2014 I wonder how the M9 lossy compression would behave for your test images.Since release of the M9 I think I have seen just one example on this forum that demonstrated a bit of a difference between the two representations, ignoring extreme pixel peeping. In order for me to simulate it, I'd have to know the algorithm, and, since you can turn it off in the M9 if you're at all worried, it doesn't seem like many people would care. Without a simulator, I can't see what would happen with the M9 algorithm unless I print out an image and photograph it both ways with the M9. Were I to do that, the target that I used for the a7R wouldn't be right; it was picked to expose problems in the Sony compression algorithm once I understood how to implement it. I suspect the Leica algorithm, presumably being different, would have different worst-case targets. Jim Link to post Share on other sites More sharing options...
3D-Kraft.com Posted February 16, 2014 Share #4296 Posted February 16, 2014 Interesting, how some people spend their time... The big question is, how this affects real world experience. Meanwhile, there was 1 (one!) reader that sent a photo example (a heavily processed long time star trail exposure) to Diglloyd where this effect was visible. From the approx. 2000 shots I took on my Chile trip there was also one, where I could assume that something similar happened in the shadows after pushing the image by about 8 F-stops. Link to post Share on other sites More sharing options...
JimKasson Posted February 17, 2014 Share #4297 Posted February 17, 2014 The big question is, how this affects real world experience. [snip] From the approx. 2000 shots I took on my Chile trip there was also one, where I could assume that something similar happened in the shadows after pushing the image by about 8 F-stops. Based on further testing, I agree that you are extremely unlikely to see these artifacts in normal photography. Can you see the Sony raw compression artifacts? | The Last Word Still, in the furtherance of photographic peace of mind, it would have been nice if Sony had made at least the delta modulation part of the compression algorithm optional. Nikon even makes run-length-encoding (lossless) compression optional. Jim Link to post Share on other sites More sharing options...
chris_livsey Posted February 17, 2014 Share #4298 Posted February 17, 2014 Nikon even makes run-length-encoding (lossless) compression optional. Jim If the explanation for Sony using it is processing speed for live view, or is it for fps and SD card writing speeds? Why does the Nikon losless not incur a penalty in speed when enabled, or does it? Link to post Share on other sites More sharing options...
JimKasson Posted February 18, 2014 Share #4299 Posted February 18, 2014 If the explanation for Sony using it is processing speed for live view, or is it for fps and SD card writing speeds? Why does the Nikon losless not incur a penalty in speed when enabled, or does it? Chris, that's not such a simple question. First, the live view piece. If indeed the nonlinear tone curve is baked into a ramp ADC, then it could speed up live view by a lot. Same with FPS. The delta modulation part would probably not help at all with live view, but might with FPS. The format for writing to the SD card is another issue. When choosing a compression algorithm, even a lossless one, with an eye to speeding up the per-image write speed, there's a tradeoff between processing complexity and raw SD write rate. I remember, eons ago in digital photography terms, setting the lossless compression on on a Nikon D100, putting it into a housing, taking it underwater, and just about going nuts because the write rate was so low. Setting the compression to off made it a lot faster. However, based on my recent experience, those days are gone. Modern Nikons write faster with compression on. The extra time spent doing the processing is more than offset by the reduced time doing the writing. However, as usual, YMMV. Jim Link to post Share on other sites More sharing options...
algrove Posted February 18, 2014 Share #4300 Posted February 18, 2014 Jim I notice in one your well written blogs you recommend against compression of any sort. Still feel that way? Link to post Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.