Here is a short roundup of the new readers mails:
Anonymous: “Mcgillicuddy giving away lighting secrets for free! Free E-book on his site here https://damian-mcgillicuddy.squarespace.com/journal/“
Teun: “I thought I’d share this excellent youtube channel: http://www.youtube.com/watch?v=dIkJklEiH8E
It coontains quite a few m43 product reviews, it isn’t fast with the reviews, but they are very informative and enjoyful to watch. It isn’t mine channel, or a friend’s channel, I though it would just be quite interesting to the people visiting this website.”
Aki: “Some sport photos and gallery about volleyball world league game Finland-Portugal. Shooted with Olympus E-M5. http://www.akikuvaa.com/world-league-suomi-portugali/ ”
Ross: “For those of us Aussie members, Olympus Imaging Australia shop is now open for accessories. Cameras are still only available through retailters. See this news page. [url]http://www.olympus.com.au/Learn-Explore/Latest-News/Olympus-Imaging-launches-online-Olympus-Store-to-s.aspx[/url] It’s nice to see these items being more accessable than at present, albeit at full price. The main web page has now changed in format with their blog & forum pages no longer there, but that might just be during the process of change being the weekend.”
Edmond: “I sent this to you folks yesterday but guess it slipped through: http://www.flickr.com/photos/terakopian/sets/72157633795304974/ It’s a gallery of images from the Olympus PEN E-P3. Seeing your post today, I thought I’d send it again as I’m sure it’ll be of interest to your readers if it’s posted with the article. Just as some background, I’m a photojournalist based in London. I have a World Press Photo award as well as the title of the British Press Awards Photographer of the Year.”
Anonymous: “I would like to report an issue with the GH3. I have done many tests to replicate this problem, and some other users have replicated the issue after my report. I have created I few videos to show the issue. https://vimeo.com/66920197 https://vimeo.com/67328505 https://vimeo.com/67382669. After increasing exposure of a RAW time-lapse, footage shows color flicker on underexposed areas. I don’t really know the reason for this problem. I have tested both 12-35 and 35-100 lumix lenses, and the problem is noticeable with both of them. This color shift ruins lots of RAW timelapse footage.”
Barbaros: “I took this footage from downtown Ankara in short hours. It may not be the best of its kind but if you are living in a country where press is suppressed you better obtain a M43. Tens of thousands protest yesterday in the city center and I have not seen any single report in media. https://vimeo.com/67476129 For tech savy people this was taken handheld with OMD+Sigma 19 2.8. Superb combo with mouth watering high iso capabilities even though dailymotion compression overshadow some of it.”
Côme: “I just wanted to tell you I have launched a new project recently, Kanchas, a free portfolio-creation system, particularly well-suited for photographers. The idea is to quickly set up a few pages, each of them featuring a big, fullscreen picture, and to browse easily among them. Maybe this will interest your readers and I would be very pleased if you shared it with the 43rumors viewers 🙂 The link is https://kanchas.com.”
Aaron: “I’m not sure if this is where I can send you videos but check out my video with the panasonic GH3. http://www.youtube.com/watch?v=9Q5PnC-9NAc”
Lee: “Please can you share our new facebook group? https://www.facebook.com/groups/cmountm43/” Editor’s note: Done 😉
Thanks you all!
17 Responses
Regarding flicker in timelapse, it is common to all cameras to see this change due to tiny variations in aperture each time a camera stops down for the exposure. Changes in exposure can be equalized with an application like LRTimelapse. The most noticeable flicker that I can see in the sequence I viewed appears to be variation in white balance (obvious changes in hue). The user should examine all of his metadata to confirm he was not shooting with auto WB turned on and that his WB numbers are consistent from shot to shot.
I am the one who did the tests showing the color flicker with RAW on GH3.
All the tests have been done with custom white balance. You can find WB temperature details in de description of each video:
https://vimeo.com/67382669
https://vimeo.com/67328505
https://vimeo.com/66920197
Some other users did the same tests following my report, and the obtained the same color shift issue:
http://www.eoshd.com/comments/topic/2824-gh3-and-raw-timelapse-issue/
http://www.personal-view.com/talks/discussion/comment/127582#Comment_127582
Looks like the “issue” is just the camera re-evaluating the WB between shots.
I am the one who reported the issue. All the timelapse tests have been done with custom and fixed white balance. You can see all the setting’s details in the description of each videos.
Sorry, my last message was in response to Tron.
Color flicker in the shadows is a common problem induced by slightly varying exposure or lighting conditions. It occurs even if WB is held constant, as it is a quantization problem. Think of it as follows: WB basically multiplies the different color channels by individual factors. Now, while it is possible to multiply a large integer value with a corrective factor of, say, 0.95 and retain reasonable accuracy, severe rounding errors are unavoidable for small luminosity values, i.e. in the shadows. Hence the color flicker: while red might have been rounded up and blue down on this frame, a minor change of lighting conditions or exposure may cause it to be the other way round on the next frame. You won’t notice in the highlights, as there the relative error remains marginal, but you definitely will in the shadows.
Color flicker affects in the same exact way raw time lapses made indoor with artificial light. Do you think this is normal too? I have done several tests like this:
http://www.eoshd.com/comments/index.php?app=core&module=attach§ion=attach&attach_rel_module=post&attach_id=521
Sorry for nickname change, my mistake.
I heard that flicker can be avoided if AFS is used instead of AFF.
That Kanchas site looked good until you read the terms and it basically gives them all your images. It’s a scam, you should take it down, they want free material to use at their will.
Hi Will,
I’m the co-founder of Kanchas. Let me explain about the terms and conditions.
We have several servers to run the site: one for the website itself, one for the database and another one to save all the data on a regular basis. As a result, when you upload a picture on Kanchas, it is at least stored on two servers (a main “public” one and a backup one). In order to so, we ought to have the right to move your pictures from a server to another. This is why we have to put this line in our terms, just like Dropbox or other storage services do.
But more importantly, our business model is to sell pro versions of Kanchas and not to sell your photos behind your back. In order to clarify, I will add this explanation to the terms and conditions.
Best regards,
Côme
“By sharing any contribution or user-generated content (including any text, photographs, graphics, video, audio or any other type of media or content) with Kanchas (http://kanchas.com) you agree to grant us, free of charge, permission to use the material for advertising purposes…”
And what does that have to do with copying data from one server to another?
Good catch. I agree, I wouldn’t want any pictures I put up used by anyone else.
Just to let you know: I have clarified the terms of use. I am sorry for the misunderstanding, but once again, our business model is based on selling a quality product, not on scamming our clients!
I hope to see you soon on Kanchas!
Côme
Hi WSG123,
This line is just an authorization to use pictures for our main website. For instance, we plan on setting up a page for “The Kancha of the day” to promote our users, and we need this line to be able to feature such material.
As a matter of fact, stuff we put on our homepage is considered as advertising by the law. So we need this authorization but we have no intention to resell your pictures.
Once again, this is not our business model and certainly not something we perceive as morally acceptable.
Côme
I understand that it’s probably fairly boilerplate TOS stuff, but a lot of people might have a problem giving a service legal authority over their work, even if the service probably has benign intentions.
Absolutely! I perfectly understand such reluctance but unfortunately, we have to anticipate any legal complication. Frankly, it’s not the funniest part of developing such site 😉