Why no cheap f/1.0 fixed lenses?

Brett wrote in post #7810213
Look at my avatar.

The Canon 7, which was a direct competitor of the Leica M3, and used a Leica mount. It was introduced in 1961.
There's less information around about the lens though, which is a 50mm f/0.95.

Either way...I want one.

My point exactly

jr_senator wrote in post #7809850
Doc, you want to rethink this? I have owned and used lenses where there is a shift of the rear elements only. I have no idea if this would be necessary for the lens in question, but to make the statement, " There's no need to move the elements relative to each other." is false.

No, I don't want to rethink it. Do you want to reread my original post?

I didn't know you thought using bellows to be such a challenge. I'm sorry for expressing my view on the ease of use of bellows as accessory. Next time before I express MY opinion, I'll be sure to start a poll to ensure that the average joe agrees with me collectively.

I was referring to the helicoid system. Mechanially, I'm sure some kind of helicoid system has been around for a while.

And do you even know what "special low dispersion" is? If you had any idea what low dispersion glass is and where it's used, you'd know that it's just a marketing gimmick.

jr_senator wrote in post #7809850
Doc, you want to rethink this? I have owned and used lenses where there is a shift of the rear elements only. I have no idea if this would be necessary for the lens in question, but to make the statement, " There's no need to move the elements relative to each other." is false.

Plus, even the internal focus lenses (the ones you say "shift the rear element only") can be focused by mounting on a bellows and moving back and forth.

DocFrankenstein wrote in post #7814191
Do you want to reread my original post?

I'm not going to reread it. It would just as incorrect as before. If there is something in there I failed to understand, please share it with me.

DocFrankenstein wrote in post #7814191
I didn't know you thought using bellows to be such a challenge. I'm sorry for expressing my view on the ease of use of bellows as accessory.

I didn't say a bellows was difficult to use or not easy to use, so stay on subject and try not to misdirect it. Canon does not even make a bellows in the EF mount, and you know why? Because it is not needed any longer. The additional piece of gear and the extra steps needed to use one are of no advantage. Oh,to say nothing of losing AF. Do you use a bellows? With which lenses?

DocFrankenstein wrote in post #7814191
And do you even know what "special low dispersion" is? If you had any idea what low dispersion glass is and where it's used, you'd know that it's just a marketing gimmick.

Does the same apply to, extra low dispersion, aspherica and fluorite? Reviews point out SLD and it's benefits, never seen one that thinks it's a marketing gimmick.

Not to interrupt a rather heated discussion, but bellows were the inspiration for modern tilt-shift lenses, so in that sense people are still "using bellows".

I'd be interested in a 20-30mm range lens fixed at f/8-11 set to it's appropriate hyperfocal distance. Interesting landscape lens, but it'd have to be sharper than sharp. :O