Wait, wait, wait, there are DSLR cameras with 4K video support available? Indeed, there are, and they were released early this year, just like the Pentax K-1. But Pentax doesn’t have any such offerings.
The difference? They tend to have lower density image sensors, and they cost a lot more. They increased cost is probably due to the use of more expensive internal electronics to shuttle around that kind of extra bandwidth, along with needing to pay for additional patent royalties to distribute software that encodes compressed 4K video. Yikes, ouch, that’s too bad for the patent royalty issue at hand.
20161215/https://en.wikipedia.org/wiki/4K_resolution#Recording
20161215/https://en.wikipedia.org/wiki/File:Taipei_IT_Month_Sony_FDR-AX1_20131130_2.jpg
20161215/https://en.wikipedia.org/wiki/List_of_4K_video_recording_devices
20161215/https://en.wikipedia.org/wiki/Canon_EOS-1D_X_Mark_II
20161215/https://en.wikipedia.org/wiki/Canon_EOS_5D_Mark_IV
20161215/https://en.wikipedia.org/wiki/Nikon_D5
20161215/https://en.wikipedia.org/wiki/Nikon_D500
20161215/https://en.wikipedia.org/wiki/Sony_Alpha_7#.CE.B17S
And you ask, what about Sony’s cameras? They use a myriad number of different lens mounts. Ouch. And I thought the purpose of interchangable lenses was to eliminate the issue of needing to buy new lenses of every different type for different cameras! Well, in some sense, it is.
20161215/https://www.dpreview.com/reviews/sony-alpha-a7r
Hey, but guess what? Looking into this further. The E-mount is the beast, but the A-mount? It came from Konica Minolta when Sony bought out their photography business. So that is the sane lens mount that is available on Sony cameras. Actually, that’s not entirely correct, but you get the idea.
20161215/https://en.wikipedia.org/wiki/Sony_E-mount
20161215/https://en.wikipedia.org/wiki/Sony_A-mount
Side note here. Wait, there’s an open hardware 4K image sensor? Wow, that’s really great! Unfortunately, the Pentax K-1 DSLR does not use it.
20161215/https://en.wikipedia.org/wiki/AXIOM_%28camera%29
What’s Super 35? Well, it relates to 35 mm cinema film, which is not to be confused with 35 mm still camera film. And why do we call 35 mm still camera film “35 mm” if it is really “36 mm” across? Well, unfortunately, the Wikipedia article does not explain that in full, so we are left to wonder how that came about. It seems to be a vintage from the earlier days of cutting 70 mm film down into 35 mm film, but when the “offical” formats became available, as a matter of fact of aspect ratio, 36 mm X 24 mm was adopted by cameras. Yeah, that makes sense. In the horizontal direction, one can flexibly alter the dimensions (somewhat), and this applied to the sprocket holes that Kodak specified, but not so much in the vertical dimension. Oh, that makes so much more sense. Yes, so the first specified dimension came from the cut and hack practice, but when the sprocket holes were later specified and used to advance and position film in increments, they were specified for 36 mm width. Too bad that Wikipedia did not make that disambiguation very clear.
20161215/https://en.wikipedia.org/wiki/35mm#Super_35
20161215/https://en.wikipedia.org/wiki/Super_35
“Faster” lens? Oh, just referring to aperture size and how that relates to the speed one can obtain properly exposed photographs at.
20161215/https://en.wikipedia.org/wiki/Lens_speed
20161215/https://en.wikipedia.org/wiki/35_mm_film
20161215/https://en.wikipedia.org/wiki/35mm_format
20161215/https://en.wikipedia.org/wiki/135_film
20161215/https://en.wikipedia.org/wiki/Film_gauge