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02-09-2015, 01:09 AM   #91
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QuoteOriginally posted by Mistral75 Quote
Let's hope the processing time will be shorter!

http://www.ricoh.com/r_dc/support/brochure/pdf/rdc7.pdf
There still exist a page about the "Ricoh RDC-7" here: https://www.ricoh.com/r_dc/past/rdc/7/

And there still exist some example shots: https://www.ricoh.com/r_dc/past/rdc/7/sample.html
e.g.:
Normal mode: https://www.ricoh.com/r_dc/past/rdc/7/img/10.jpg
"PRO-H" Mode: https://www.ricoh.com/r_dc/past/rdc/7/img/28.jpg

02-09-2015, 02:11 AM   #92
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QuoteOriginally posted by mee Quote
Macro could be fun with this feature
True. They should also add focus bracketing as a feature (with AF lenses). Be very handy, not just for macro.
02-09-2015, 02:43 AM   #93
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Oh wow, this suddenly makes Pentax really very interesting again! Excellent news!!
02-09-2015, 03:09 AM   #94
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QuoteOriginally posted by rawr Quote
True. They should also add focus bracketing as a feature (with AF lenses). Be very handy, not just for macro.
It is called Z-stacking in the microscope imaging world. I do it regularly on a Zeiss StereoDiscovery.V12 :-) They should implement an in-camera automatic Z-stacking option that merges the stacked images but also a semi-automatic option that just creates the image stack and lets user do the stacking by using dedicated software on a computer with the necessary processing power. The camera will not have enough processing power even for a regular stack of let's say five images each 24 or 36Mb, let alone a stack of super resolution images.

I already proposed this in the FF ideas thread on Ricoh US website. It is definitely doable and would be great. If Pentax wants help, I would be happy to contribute with tips on how to implement this.

02-09-2015, 03:18 AM   #95
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QuoteOriginally posted by Rorschach Quote
It is called Z-stacking
Even if it wasn't Z-stacking and image merging in-camera, but just output of 5 individual images with focus adjusted sequentially -3 to +3 (which would be simpler), it could still be useful. Just to make sure you've nailed focus in at least one shot, for example, when shooting wide open with very slim DOF.
02-09-2015, 04:36 AM   #96
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How quickly can the camera shift the sensor? Presumably this is only going to work for stationary subjects at relatively slow shutter speeds, and preferably on a tripod?
02-09-2015, 04:51 AM   #97
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QuoteOriginally posted by RobG Quote
How quickly can the camera shift the sensor? Presumably this is only going to work for stationary subjects at relatively slow shutter speeds, and preferably on a tripod?
The camera can shift the sensor really quick, a few milliseconds and it's done. It should work for any shutter speed.
02-09-2015, 05:29 AM   #98
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QuoteOriginally posted by Gimbal Quote
The camera can shift the sensor really quick, a few milliseconds and it's done. It should work for any shutter speed.
That is if the camera has an electronic shutter. Also the user is really not allowed to move the camera at all (unless the SR balances it out). We are talking about very small movements that can ruin the effect, so I think it is safe to assume that this really mostly makes sense for tripod use.

---------- Post added 09-02-15 at 13:37 ----------

The data doesn't have to be processed in camera. I think those who are this particular about image quality wouldn't want to have to use JPEG.

The Foveon mode intrigues me more. That could be done in camera, and quickly. Just add up the values taken for each pixel in each color (with 3 photos, maybe 4 or 5 because I believe green is bigger?) and save it into a raw file. The file wouldn't be much bigger, but have accurate colors, no moire etc. Again the subject does have to be very stationary.

IIRC Sony has a sensor that does this on the fly, and so fast that it works handheld or for video.

02-09-2015, 07:12 AM   #99
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A low-res 12mp sensor for low light plus super resolution for 36mp would be too specialized if that's Ricoh's only FF model. Such a camera would be too limited for regular usage. The 36mp mode would require stationary subjects, a tripod, and processing time (unless Ricoh makes an image processing breakthrough).
02-09-2015, 07:27 AM   #100
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QuoteOriginally posted by DeadJohn Quote
A low-res 12mp sensor for low light plus super resolution for 36mp would be too specialized if that's Ricoh's only FF model. Such a camera would be too limited for regular usage. The 36mp mode would require stationary subjects, a tripod, and processing time (unless Ricoh makes an image processing breakthrough).
Also, a downsampled high resolution sensor gives pretty much the same result as a low res sensor, so the benefit of a low res sensor is pretty much nil.
02-09-2015, 07:50 AM   #101
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QuoteOriginally posted by RobG Quote
How quickly can the camera shift the sensor? Presumably this is only going to work for stationary subjects at relatively slow shutter speeds, and preferably on a tripod?
Seems like you would use an electronic shutter and take a series of photos, really similar to the HDR jpeg mode that is currently available. Moving the sensor at tiny bit left or right shouldn't take but a couple of miliseconds at most.
02-09-2015, 07:57 AM   #102
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QuoteOriginally posted by Gimbal Quote
Also, a downsampled high resolution sensor gives pretty much the same result as a low res sensor, so the benefit of a low res sensor is pretty much nil.
Then why didn't Sony just use downsampling on the 36mp A7r instead of marketing a seperate 12mp camera? I was told it was the bigger sensels that produce the superior light sensitivity. There is no trick to reproduce it with smaller sensel sensors.

If only it were true. Then we could have cameras that use the full resolution in bright daylight, and just downsample to user specific settings to reach the desired light sensitivity in low light situations.
02-09-2015, 09:01 AM   #103
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QuoteOriginally posted by Clavius Quote
Then why didn't Sony just use downsampling on the 36mp A7r instead of marketing a seperate 12mp camera? I was told it was the bigger sensels that produce the superior light sensitivity. There is no trick to reproduce it with smaller sensel sensors.

If only it were true. Then we could have cameras that use the full resolution in bright daylight, and just downsample to user specific settings to reach the desired light sensitivity in low light situations.
Because the 36mpix may be incapable of that (and this should be done in sensor IMO) ??
02-09-2015, 09:13 AM   #104
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Can it be done on a MF?
02-09-2015, 09:27 AM   #105
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QuoteOriginally posted by Gimbal Quote
Also, a downsampled high resolution sensor gives pretty much the same result as a low res sensor, so the benefit of a low res sensor is pretty much nil.
I thought that was the whole point of the normalization on the DXO Mark scores. Based on that, the A7s does show some (although not dramatic) improvement in high iso performance versus the A7r. This is not seen in less noise, but in more dynamic range at high isos that is pretty significant above iso 3200.
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