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Anonymous Sun 26 Jan 2025 01:27:49 No.4401688 View View Reply Original Report

Quoted By: >>4401690 >>4401691 >>4401693 >>4401694 >>4401747 >>4401759

Why 85mm, 105mm and 135mm
>muh compression
I get that, but why those 3 specific numbers. why not like 90mm? or 100mm?

Anonymous

Anonymous Sun 26 Jan 2025 01:59:28 No.4401690 Report

Quoted By:

>>4401688
Because you touch yourself at night.

But seriously. I'm no expert, but I think it's because of making the lenses at different MM there are mm where it requires more lenses and more expense to get the maximum quality. Those mm ranges are a good range of cheap, compact and good quality.

Anonymous

Anonymous Sun 26 Jan 2025 02:27:21 No.4401691 Report

Quoted By:

>>4401688
It's not always those numbers, there's 58's, 75's, 70's, 80's, 150's, 200's and of course 70-200's.

Anonymous

Anonymous Sun 26 Jan 2025 02:29:47 No.4401693 Report

Quoted By: >>4401735

>>4401688
Japs copying each others optical formulas back and forth forever after the initial theft from zeiss.

Only sigma makes the better lengths like 65mm and 90mm because they’re leica adjacent

Anonymous

Anonymous Sun 26 Jan 2025 02:30:26 No.4401694 Report

Quoted By:

>>4401688
It depends on the brand and the era, as well as what else is available. I have a Minolta 100mm macro but maybe that length isn't common or made for your mount. You also have to see it from the manufacturer side: If you make an 85 and a 105 for instance, how likely are you to sell the gap fillers if you started offering 90 and 100 too?

Anonymous

Anonymous Sun 26 Jan 2025 08:42:55 No.4401735 Report

Quoted By:

>>4401693
Pentax has made some unicorns like 120mm.

Anonymous

Anonymous Sun 26 Jan 2025 10:40:16 No.4401747 Report

Quoted By:

>>4401688
because at some points there were rangefinder cameras which displayed framelines for different focal lengths in the viewfinder. these frame lines were physically built into the camera, so when the manufacturer of the camera body made one that had 85mm frame lines, it wouldn't have made sense to build a 90mm lens for it.

Anonymous

Anonymous Sun 26 Jan 2025 13:01:44 No.4401759 Report

Quoted By: >>4401763 >>4401767 >>4401769

>>4401688
>why only mention the most used focal lengths instead of listing every single possible combination?
are you perchance retarded?

Anonymous

Anonymous Sun 26 Jan 2025 13:06:24 No.4401763 Report

Quoted By: >>4403141

>>4401759
I'm saying why are those 3 arbitrary numbers the most common

Anonymous

Anonymous Sun 26 Jan 2025 13:30:39 No.4401767 Report

Quoted By:

>>4401759
Retard.

Anonymous

Anonymous Sun 26 Jan 2025 13:57:55 No.4401769 Report

Quoted By:

>>4401759
>anon can't into context
Yes, you are retarded.

Anonymous

Anonymous Sun 02 Feb 2025 17:58:20 No.4403141 Report

Quoted By:

>>4401763
They are apparently sweet spots for maximizing performance with regards to historic lens manufacturing constraints and designs.

Anonymous

Anonymous Sun 16 Feb 2025 01:51:17 No.4406577 Report

Quoted By:

yeah

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