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A couple years ago, Hasselblad released a 200-megapixel, Multi-Shot version of its H5D medium format camera. Now it's back with a bonkers, 400-megapixel version of the H6D: the H6D-400c.
Hasselblad's Multi-Shot technology is pretty straightforward: it takes four 100-megapixel images, shifting the sensor by one pixel for each capture, and then two more shots that shift the sensor by half a pixel. By combining all six stills, the resulting file is a single 400-megapixel (23200 x 17400 pixel) 16-bit TIFF file that weighs in at 2.4GB. In fact, the images are large enough that the camera needs to be tethered to a computer to capture them.
[...] The camera will go for $47,995 when it launches in March, compared to the H6D-100c's relatively modest $27,000 price tag.
Story at The Verge.
(Score: 2) by Aiwendil on Thursday January 18 2018, @01:28PM (5 children)
Oh yeah, optical zoom.. :)
Kinda silly of me to miss that.
Assume 24mm lens.
(Score: 4, Informative) by Codesmith on Thursday January 18 2018, @02:30PM (4 children)
24mm lens average FOV is 73.7 horizontal degrees (from angle of view [wikipedia.org] )
The camera has a final value of 23200 x 17400 pixels (from Hasselblad [hasselblad.com])
73.7 degrees is 265320 arc seconds
So each pixel is 11.44 arc seconds in width.
With an observer height of 1.7 m, the horizon is 4.7 km distant (distance to horizon [wikipedia.org])
An object 1 m in width is 43.9 arc seconds in width at the horizon, therefore a 1 meter item would be represented by ~4 pixels. With the sensor shift, I'm guessing that you're looking at a real resolving power of about ~2 pixels. Not great.
I'd suggest using a longer lens. :) A 300 mm lens would give you ~40 pixel resolution.
Pro utilitate hominum.
(Score: 1) by Codesmith on Thursday January 18 2018, @02:33PM
And I completely skipped over atmospheric interference, lighting, weather, etc.
Pro utilitate hominum.
(Score: 4, Interesting) by JoeMerchant on Thursday January 18 2018, @02:38PM (1 child)
And, this isn't really about shooting billboards on the horizon.
The first, best, use I put a high MP camera to was visiting an eminent scientist in our field, he allowed us to take a snapshot of his office bookcase, and from just one picture, we could resolve most of the titles on the spines of 100+ books.
A 400MP image is the kind of thing you can take from the floor of a basketball arena looking up into the crowd, and get a clear picture of all the faces in the seats, and maybe resolve details like earrings, eye color, etc. Stand at the back of a lecture hall and photograph over 100 students' shoulders, and resolve what they are all browsing on their cellphones, etc.
🌻🌻 [google.com]
(Score: 2) by takyon on Thursday January 18 2018, @02:52PM
Reminds me of Long Shot [imdb.com].
[SIG] 10/28/2017: Soylent Upgrade v14 [soylentnews.org]
(Score: 2) by Kromagv0 on Thursday January 18 2018, @03:32PM
I think you are a bit off there with the horizontal field of view. The 73.7 degrees is for 35mm equilvant (24mm x 36mm) along the 36mm edge. On a medium format a 24mm lens would be like an ultra wide angle on a full frame digital or 35mm film. I'm not sure of the crop factor for this camera but I would guess it is likely around .6 or maybe a bit more so that 24mm lens would be closer to the equivalent of a 14 or 15mm lens on a 35mm camera, so closer 102 degrees for horizontal FoV. Also with as high of a resolution that this camera is shooting at the diffraction limit becomes a real concern as even with its large 53.4mm × 40.0mm sensor that is a lot of pixels to stuff in there or simulate. So assuming you have that mythical f/1.4 lens that offers edge to edge sharpness wide open you might get that resolution if you can focus it correctly. Also the sensor is only actually a 100 megapixel image and the max resolution is the results after doing the sensor shift magic.
T-Shirts and bumper stickers [zazzle.com] to offend someone