My HAL 9000 builds (plural)

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Mozzie

New Member
Hm. I’m not sure what you mean. Nikon 35mm film lenses aren’t described in T-stops since they aren’t motion picture lenses. They use f-stops. And the Nikkor 8mm f/2.8 lens couldn’t have been used for anything in 2001 since that model was introduced in 1970, after the film came out.

The century rehouse is listed in Tstops, though I think it's actually a T3.1 when measured
 

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nkg

Sr Member
RPF PREMIUM MEMBER
Yeah, I was gonna say - if they stuck a new mount on a still film lens and used it for motion picture purposes they likely wouldn’t have a T-stop number equivalent to its f-stop, even at short focal lengths!
 

joberg

Master Member
Yeah, I was gonna say - if they stuck a new mount on a still film lens and used it for motion picture purposes they likely wouldn’t have a T-stop number equivalent to its f-stop, even at short focal lengths!
Yes, that was confusing:unsure:...still trying to make sense of the T-stop vs F-stop:p
 

nkg

Sr Member
RPF PREMIUM MEMBER
Lenses for still cameras have their maximum f-stop marked on them, which is equivalent to the largest aperture setting of the lens. This is a ratio of the focal length of the lens divided by the aperture diameter.

Lenses for film and video cameras have their maximum T-stop. This is a different value, as it is transmissive - it tells you how much actual light gets through the lens. This is because filmmakers need to know how much light will hit their film or sensor in an absolute sense.

T-stops involve absolute measures of light, whereas f-stops involve relative measures of length.

For more information, have a look at my book on camera lenses. The Lens by NK Guy. ;)

Anyway. And now back to Jay's HAL thread!
 

j_holtslander

Active Member
It took a while to arrive due to a crappy local courier being used but the frame arrived yesterday. It’s a tad thicker than the Moebius frame but this doesn’t bother me. It has 1/8th facing edge but will need some risers used along the border to keep the faceplate at the right level from the edge. I was thinking of styrene strips. I’ll also need to add the aluminum section that divides the top section from the speaker with some 1/8 bar.

i realize there’ll be people who think this isn’t accurate enough but it’s accurate enough for me and for my friend’s gift. I don’t have the means to do better.

I ordered it from here.

 

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Fett_Ish

Sr Member
It took a while to arrive due to a crappy local courier being used but the frame arrived yesterday. It’s a tad thicker than the Moebius frame but this doesn’t bother me. It has 1/8th facing edge but will need some risers used along the border to keep the faceplate at the right level from the edge. I was thinking of styrene strips. I’ll also need to add the aluminum section that divides the top section from the speaker with some 1/8 bar.

i realize there’ll be people who think this isn’t accurate enough but it’s accurate enough for me and for my friend’s gift. I don’t have the means to do better.

I ordered it from here.

I find this totally acceptable and am going to get one myself. I want to hang mine so this is perfect.
 

j_holtslander

Active Member
One note... If anyone else is thinking of ordering the same frame I did... I specified that my provided dimensions were for the OUTSIDE edge of the frame and NOT for artwork that was to be housed within the frame. (How they usually do things) Otherwise they’d have made the frame to accommodate my dimensions and ensure a gap on each side of the “painting’s canvas”
 

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Fett_Ish

Sr Member
One note... If anyone else is thinking of ordering the same frame I did... I specified that my provided dimensions were for the OUTSIDE edge of the frame and NOT for artwork that was to be housed within the frame. (How they usually do things) Otherwise they’d have made the frame to accommodate my dimensions and ensure a gap on each side of the “painting’s canvas”
I’m not sure I understand how you came to your dimension. Did you measure the outside of a kit and use those? Also if depth is an issue, I had planned on mounting mine on some black plexiglass so you could inset it into something making it appear shallower.
 

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