SimonOL

I believe this lens was intended to be used for infra red photography and/or used with night vision scopes. From what I've seen, it's not a general purpose lens but might produce some interesting ...

That's a very good price - if you're lucky, the haze might even clean off if it's been caught early enough but bear in mind that sometimes haze is not removable having permanently etched the glass ...

OK - that narrows it down a bit :-) Now you need to decide how wide you want to go. If you use your 18-50mm kit lens, what kind of focal length do you typically use to get the type of shot you want ...

You need to have a clearer idea of what you will use the lens for and what you are looking for from that lens. Determine why you are interested in using 'retro' lenses. What is not satisfactory ...

M42 to Minolta SR adapters are quite thin (45.46mm minus 43.72mm = 1.74mm) but I guess there is still potential for them to be produced too thin! How much past infinity are we talking about here? ...

There is no problem stacking adapters as long as those adapters are good quality. I use stacked adapters quite regularly. In theory there is an increased chance of: - imprecise flange distance ...

Of the two adapters linked to, only the Fotodiox would be suitable for RZ67 lenses as it includes a focusing helicoid (RZ67 cameras used bellows for focussing so the lenses themselves have no ...

I've had version III with macro for years and have been very happy with it. Just checked ebay to see current prices for other versions with no real intention of buying another and... I was a bit ...

Yes :-) With the macro version you can focus to minimum focus distance at 70mm, push the little button on the zoom ring and start to engage the 'macro' function. It will give you progressively ...

It states that there is a 'standard' version on the pentxforums.com introductory text about the lens but everyone(?) who owns the lens claims to have the Anniversary edition and only photos of the ...

LOL :-) Never heard of that lens and now I know why! Just checked ebay sold listings and it had better be good for those kind of prices.

99% of the time I use my A7II in S mode. I've adjusted the EVF brightness to the lowest setting, which I've found helps to avoid under-exposed images, and usually adjust the shutter speed to give ...

Nice results. I tried this once with a Helios 44 - it's quite a common modification made to that lens and gives similar results - but it has quite a disastrous effect on sharpness to the point that ...

I can't think of any screw mount from a manufacturer beginning with M so that's not much help ;-) . M for mysterious! If it does have a T-mount adapter fitted (looks like it does) it should just ...

That's just what I was thinking ! If the front element was broken (and missing) the second element would be visible and would present a concave surface. See the following link which shows a lens ...

It looks like a filter is fitted to the front? Maybe the filter glass was smashed which damaged the front element? The front element itself is quite substantial glass so you would have found some ...

Character is a difficult concept - it's not binary; there is no right or wrong and a particular lens can show very different characters depending on the subject matter and shooting conditions. ...

So it's not just me then ;-) I found the Super Tank 55/1.8 just a bit dull so sold it. Many seem to like it though which goes to show that 'pleasing' character is subjective and is in the eye of ...

Yeah - the seam isn't obvious. The info Tom linked to also mentions the part I mean but calls it '...a conical section which appeared at first to be part of the focus-mount.'. According to that ...

The tapered silver part just in front of the black mount should unscrew from the rest of the lens body. That would then enable the mount itself to be removed. I've never managed to do this because ...