exakta vs m42

[magnet-2009]

I noticed that exakta mount lenses are cheaper always than m42 same type lenses.

It's possible to mount both types to an eos.

Is this cause of quality-performance issues or the demand of exacta lenses is low?

Exakta lenses have the same body compatibility [Nikon-Canon - Pentax.....using adeptors] of m42 lenses?

I search for "clever" transactions, the budget is getting lower and lower...

[rawhead]

Exacta can only be mounted on Canon (if you exclude 4/3 & MFT) using a glassless adapter (without modding). M42 can be mounted on everything, except Nikon, using glassless adapter. Hence, M42 versions have higher demand, hence higher price. Pretty simple

[Orio]

Many exakta lenses can NOT be mounted on EOS - I'm speaking of those with the "bulge".
Only the bulgeless lenses can, and even with several of the bulgeless, you can have problem of clearing mirror.

All in all there is a reason why M42 lenses are preferred by DSLR users.

(however there is still a market of Exakta collectioners)

[magnet-2009]

Thank you, there is a simple explanation for everything.