Perry Wilson
Well-known member
Oh how I love you KONVAS!!
Chinese 2K RAW S35 Cinema Camera, 8000 dollars
- Thread starter HHL
- Start date
Oh how I love you KONVAS!!
Actually, it's probably an Eclair Cameflex CM3, of which the Konvas 1M is a clone.
Perry Wilson
Well-known member
Ill agree here^^, and does the Eclair use Oct-18/19 mount glass?
Dan Hudgins
Well-known member
Bolex EL pistol grip
Bolex EL pistol grip
Anyone have experience with low end HDMI EVF?
Bolex EL pistol grip
Anyone have experience with low end HDMI EVF?
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Mayebe something like the Cinevate Cyclops is what you can use. http://www.cinevate.com/catalog/product_info.php?products_id=239
Dan Hudgins
Well-known member
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simonpwood
Well-known member
You normally keep one eye free so you can see where you are putting your feet when you are running-and-gunning.
Dan Hudgins
Well-known member
23.976p vs. 60i
23.976p vs. 60i
Thanks for bringing-up the point for people that are thinking of walking with the camera running, and all the issues associated with that style of film-making.
23.976p vs. 60i
Thanks for bringing-up the point for people that are thinking of walking with the camera running, and all the issues associated with that style of film-making.
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simonpwood
Well-known member
Its quite normal for camera operators to shoulder mount 35mm cameras and follow the action on foot (usually with wide lenses). Look at Academy Award Cinematography winner 'Saving Private Ryan' or nominee 'Children of Men' as recent examples of running-and-gunning with shoulder mounted 35mm cameras. A lot of recent 'shaky-cam' style movies (everything from 'Blackhawk Down' to "Bourne Identity') also use hand held or shoulder mounted 35mm cameras in very volatile and dynamic situations.
Not that I want to derail the thread; its just that the binocular rig would seem to have a very limited static use, whereas the tried and tested optical viewfinder (or EVF) was designed such that the operator could use both eyes at the same time for moving with the camera (and could also be used when on a tripod).
Anyway, this has nothing to do with the Chinese 2K Raw camera; back to thread....
Not that I want to derail the thread; its just that the binocular rig would seem to have a very limited static use, whereas the tried and tested optical viewfinder (or EVF) was designed such that the operator could use both eyes at the same time for moving with the camera (and could also be used when on a tripod).
Anyway, this has nothing to do with the Chinese 2K Raw camera; back to thread....
Dan Hudgins
Well-known member
Shutters and camera motion
Shutters and camera motion
Shutter type may have an impact on what you can shoot and how you shoot it.
Shutters and camera motion
Shutter type may have an impact on what you can shoot and how you shoot it.
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Dan Hudgins
Well-known member
According to this link:
http://www.arri.com/camera/digital_cameras/learn/alexa_faq.html
Quote: [ALEXA uses a CMOS sensor with a rolling shutter. The pixels are read out from the sensor sequentially, starting at the top left of the image and then read line by ...]
And now we return to the subject of this thread.
A reminder:
CONDUCT (The Eight P’s)
Not that we don't find some of these topics interesting, we do--but they are not appropriate for this filmmaking forum.
1. No Politics
We've tried it and it doesn't work. There are many other sites where you can discuss politics, just not this one.
A reminder:
CONDUCT (The Eight P’s)
Not that we don't find some of these topics interesting, we do--but they are not appropriate for this filmmaking forum.
1. No Politics
We've tried it and it doesn't work. There are many other sites where you can discuss politics, just not this one.
Perry Wilson
Well-known member
hey Dan any new footage?
Dan Hudgins
Well-known member
Footage
Footage
As far as I know things are moving forward here and there. I sent them some short sample TIF and AVI compressed MPG4v2 1920x1080p of some of the graded shots (made 2.5K oversample and downsized to HD after de-Bayer) I've done so far, I need to re-do some because of some related lens issues.
Footage
As far as I know things are moving forward here and there. I sent them some short sample TIF and AVI compressed MPG4v2 1920x1080p of some of the graded shots (made 2.5K oversample and downsized to HD after de-Bayer) I've done so far, I need to re-do some because of some related lens issues.
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Dan Hudgins
Well-known member
KineRAW-S8p (tm) First sample fooatge (lens tests) 2592x1104x12bit@24fps
KineRAW-S8p (tm) First sample fooatge (lens tests) 2592x1104x12bit@24fps
I got permission to show some lens tests on the KineRAW-S8p (tm).
These are also experiments in the de-Bayer settings and tests of various lighting ratios and exposure levels as well as filters, edited together using my freeish DI software.The AVI uploaded to Vimeo was compressed MPEG4v2 in VirtualDub made from 1920x1080 letterboxed BMP frames (The DI has an option to make a numbered frame set in edit order, VirtualDub can read that and make uncompressed or compressed AVI with or without sound).The original footage is 2592x1102x12bit@24fps and has probably more detail than you can see in the compressed 1920x1080 version, and also no banding and maybe less noise in places.
For making a DCP or 35mm print the original graded 48bpp TIF frames would be used and so the look on the movie theater screen would probably be crisper and with less artifacts, and potentially more than the 8bit tone depth you can see off Vimeo.
I got the adapters made for using an anamorphic lens to test the 1828x1556x12bit#24fps mode, and also put a gear on a 5MP 12.5mm f/1.4 Fujinon to use with a follow focus, so there are many more things to test and look at the results of when I can get time to put together some more reels, such as slow motion at 220fps and 48fps (to be skip printed) etc.Here is the link to my first try at de-Bayer of the DNG frames since the last firmware update,
http://vimeo.com/33997025
I have attached some still frames, unfortunately DVXuser would not accept the uncompressed BMP files about 6MB each, so I compressed them JPG 100% which came out about 1MB each, DVXuser upload then re-compressed them down to about 40KB!
So as you can guess 99% of the information when somewhere. If you want to see the original uncompressed frames you can try emailing me at tempnulbox (at) yahoo (dot) com and put "I'm from DVXuser about uncompressed BMP" in the subject line (otherwise you may get deleted as junk mail.
Eee-gads! I just looked at the jpg frames, not only did they get re-compressed but resezed to 1000 wide it seems, losing just about everything that makes them look good in the process, its too bad that on a site dedicated to discussion of things like image quality, one cannot post examples that would make such discussion be able to be on the subject of the actual image quality. Its great that DVXuser is a free site, but I'll have to look into other ways to show results I guess, for now you can email me for the uncompressed frames if you have a interest in seeing what the camera actually can shoot like...
KineRAW-S8p (tm) First sample fooatge (lens tests) 2592x1104x12bit@24fps
I got permission to show some lens tests on the KineRAW-S8p (tm).
These are also experiments in the de-Bayer settings and tests of various lighting ratios and exposure levels as well as filters, edited together using my freeish DI software.The AVI uploaded to Vimeo was compressed MPEG4v2 in VirtualDub made from 1920x1080 letterboxed BMP frames (The DI has an option to make a numbered frame set in edit order, VirtualDub can read that and make uncompressed or compressed AVI with or without sound).The original footage is 2592x1102x12bit@24fps and has probably more detail than you can see in the compressed 1920x1080 version, and also no banding and maybe less noise in places.
For making a DCP or 35mm print the original graded 48bpp TIF frames would be used and so the look on the movie theater screen would probably be crisper and with less artifacts, and potentially more than the 8bit tone depth you can see off Vimeo.
I got the adapters made for using an anamorphic lens to test the 1828x1556x12bit#24fps mode, and also put a gear on a 5MP 12.5mm f/1.4 Fujinon to use with a follow focus, so there are many more things to test and look at the results of when I can get time to put together some more reels, such as slow motion at 220fps and 48fps (to be skip printed) etc.Here is the link to my first try at de-Bayer of the DNG frames since the last firmware update,
http://vimeo.com/33997025
I have attached some still frames, unfortunately DVXuser would not accept the uncompressed BMP files about 6MB each, so I compressed them JPG 100% which came out about 1MB each, DVXuser upload then re-compressed them down to about 40KB!
So as you can guess 99% of the information when somewhere. If you want to see the original uncompressed frames you can try emailing me at tempnulbox (at) yahoo (dot) com and put "I'm from DVXuser about uncompressed BMP" in the subject line (otherwise you may get deleted as junk mail.
Eee-gads! I just looked at the jpg frames, not only did they get re-compressed but resezed to 1000 wide it seems, losing just about everything that makes them look good in the process, its too bad that on a site dedicated to discussion of things like image quality, one cannot post examples that would make such discussion be able to be on the subject of the actual image quality. Its great that DVXuser is a free site, but I'll have to look into other ways to show results I guess, for now you can email me for the uncompressed frames if you have a interest in seeing what the camera actually can shoot like...
Attachments
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Simon Shasha
Well-known member
Wow, these images are really beautiful! Keep up the good work!
Dan Hudgins
Well-known member
KineRAW-S8p (tm) sample video and still frames from reel #A2
KineRAW-S8p (tm) sample video and still frames from reel #A2
Thanks for the complement, its great to work with True RAW data as you can grade it 1000+ ways AFTER you shoot.
The still above from the 5mm Computar-Ganz lens shows a bit of red CA fringe, right now my CA correction is doing linear corrections, I would need to add warping to work out some non-linear lens artifacts, so that may take some time, but with the DNG files you can always go back and get better results as de-Bayer software improves over time.
The other four images are from a 10mm Schneider which has very good correction, so does not need as much post processing, probably.
The softness in the bright highlights is intentional and not part of the camera's look in particular, I am simulating the image spread from 35mm negative positive printing trying to get a 4th generation movie film character. Film always has lower resolution in the bright and dark areas with its peak in the mid-tones because of the head to foot flip on each negative to positive to negative to positive printing.
I don't see much ringing or chroma moire in the 1920x1080 letter boxed results. I think with careful exposure and processing 2048x858 for DCP projection should be workable from the KineRAW-S8p (tm) based on the tests I have worked through so far. My original interest was for transfer to 35mm color print stock, which would be a lower standard since on projection only about 960 to 1280 resolution (at high MTF) would be seen because of the poor focus of movie film projectors without a projectionist in the booth to re-adjust every few minutes.
Anyway, sorry about the heavy compression losses, but you can get some idea of the dynamic range, unless your LCD monitor is clipping the highlights and shadows, you can check that with the test pattern I made at the start of the video on vimeo...
See the Eee-gads! note above in my previous post, and please do not make judgments about the camera's resolution or my de-Bayer software from the compressed images, if you have a serious interest you can email me and I can maybe try to email back the BMP frames uncompressed so you can see them better...
KineRAW-S8p (tm) sample video and still frames from reel #A2
Thanks for the complement, its great to work with True RAW data as you can grade it 1000+ ways AFTER you shoot.
The still above from the 5mm Computar-Ganz lens shows a bit of red CA fringe, right now my CA correction is doing linear corrections, I would need to add warping to work out some non-linear lens artifacts, so that may take some time, but with the DNG files you can always go back and get better results as de-Bayer software improves over time.
The other four images are from a 10mm Schneider which has very good correction, so does not need as much post processing, probably.
The softness in the bright highlights is intentional and not part of the camera's look in particular, I am simulating the image spread from 35mm negative positive printing trying to get a 4th generation movie film character. Film always has lower resolution in the bright and dark areas with its peak in the mid-tones because of the head to foot flip on each negative to positive to negative to positive printing.
I don't see much ringing or chroma moire in the 1920x1080 letter boxed results. I think with careful exposure and processing 2048x858 for DCP projection should be workable from the KineRAW-S8p (tm) based on the tests I have worked through so far. My original interest was for transfer to 35mm color print stock, which would be a lower standard since on projection only about 960 to 1280 resolution (at high MTF) would be seen because of the poor focus of movie film projectors without a projectionist in the booth to re-adjust every few minutes.
Anyway, sorry about the heavy compression losses, but you can get some idea of the dynamic range, unless your LCD monitor is clipping the highlights and shadows, you can check that with the test pattern I made at the start of the video on vimeo...
See the Eee-gads! note above in my previous post, and please do not make judgments about the camera's resolution or my de-Bayer software from the compressed images, if you have a serious interest you can email me and I can maybe try to email back the BMP frames uncompressed so you can see them better...
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