Ok, so I have decided to review this lens - the Russian made Helios 44-2 58mm f2 prime lens with an M42 mount.
The first thing that strikes me about it, is the all metal construction.
Solid in build, it weighs 216 grams.
Overall length set at infinity is just 54mm and 60mm at its closest focus of 0.5 m
With a 58mm focal length, it is what most of us would call a standard length lens.
However, there is a lot of debate whether 50 to 58mm lenses are the closest to the view of a human eye or in fact it is 24mm.
So now is where I say, don't get bogged down with all this tech nonsense, that's for the technicians who design and build the lenses.
YOU are a photographer and so the only thing that matters is... DOES IT TAKE GOOD PHOTOS ?!
A lens such as this was made to be used on a film SLR camera, in this case usually a ZENIT (a huge chunk of a camera).
These days, most of you have the nice new DSLRs or mirrorless and micro 4/3rds machines.
So it won't fit... WRONG, it (like most other old lenses) can have an adapter fitted to it and be used quite happily on your digital tech box!
For this lens, there are two types of adapter, they are