New Retroscan - scans all formats!

[PM490]

@cpixip

Let me explain. The image on the Super-8 film is tiny - as far as I know, the camera frame is specified with 5.690 x 4.220 mm, whereas the slightly smaller projector frame features 5.430 x 4.010 mm as dimensions.

Well aware of the dimensions, see this post.

Test Patterns Development

Summary of 8mm and Super 8 film dimensions [Slide1] [Slide2] Also in pdf

@cpixip

I have found different data for Kodachrome, with numbers ranging from 53 lines/mm to 100 lines/mm. Taking the best value into account, we end up with only 569 x 422 pixel per camera frame

SMPTE Recommended Practice Specification for Registration Test Film (for 8, and 16) specifies

“The rosette in the center shall indicate measurement from 60 to 240 lines per millimiter”
See RP19-1982 for 8mm, RP 20-1982 for 16 mm.

For clarity, these lines are not the dimensional unit lines.

@cpixip

I have found different data for Kodachrome, with numbers ranging from 53 lines/mm to 100 lines/mm. Taking the best value into account, we end up with only 569 x 422 pixel per camera frame…

@cpixip one cannot resolve/render 100 lines with 100 pixels.

Here is an actual DIY scan I made, suffering from youtube compression, and one can see the difference just by switching the youtube resolution to HD, look at the power lines and the increase details of the monument writings.

8mm Film DIY Scanner Frame-by-Frame

I know that 4K for 8mm is ongoing debate at Kinograph, count me on the side that more-is-more, And for 16mm, HD resolution is less than what the film can render..