smc-M 40mm f2.8 Pentax

Mike Kennedy · Nov 22, 2006

I lucked into this lens today and I only paid $35.00 for it. Minty condition. It's begging for a lens hood.Can I use one of those off the shelf rubber no name jobs of do I need a special one to prevent vignetting?

Thanks in advance

Earl Dunbar · Nov 22, 2006

Mike: The filter size is 49mm. It wouldn't be "original equipment", but the metal clamp-on hood for the OM 50/1.8, 50/1.4 and 35/2.8 would work really well. You can get them on that auction site for $10 to $20, maybe less if you're lucky.

Magnus W · Nov 22, 2006

... or the round metal screw-on for pentax 50/2.0-1.7-1.4 ...

-- MW

Markok765 · Nov 22, 2006

Isnt this lens a pancake lens?

MattKing · Nov 23, 2006

I would think that if you are looking for one that isn't specifically designed for this lens, you will need one that is designed for a 35mm lens - a truly generic lens shade might be designed for 50mm, and might vignette a 40mm lens.

Matt

Earl Dunbar · Nov 23, 2006

MattKing said:
I would think that if you are looking for one that isn't specifically designed for this lens, you will need one that is designed for a 35mm lens - a truly generic lens shade might be designed for 50mm, and might vignette a 40mm lens.

Matt

That's why I recommended the Oly shade, part# 108-230. It is designed for two of the Oly 50s and the 35/2.8. The Zuiko 40/2 pancake was introduced later with a different hood, a screw-in (part number 108-240) as opposed to slip-on, but I'm fairly certain that 108-230 would work as well.

Since the Pentax 40 shares the same filter size, I feel fairly certain the shade I referenced would be a good choice. And it looks good.

John Koehrer · Nov 24, 2006

I just use a 28mm screw in hood for the thing. It's a tad bit short but works OK.
I don't think I have ever seen the PROPER hood for this lens even in the Pentax dealer catalog. Maybe I just never noticed it.
You cannot use the clamp on Oly hood, There's not enough of the barrel protruding. If you use a filter you would be OK.

Earl Dunbar · Nov 25, 2006

Thanks, John. I didn't know about the width of the barrel protrusion.

telkwa · Jan 27, 2007

this lens continuously sells for more than it is worth. the performance is fairly average for a pentax prime, but if you like 40mm focal length... you could sell it and buy a K35/3.5 and lens hood, and still have money left. (not that the 35/3.5 needs a lens hood that much)

Ed Matthew · Jan 27, 2007

Mike Kennedy said:
I lucked into this lens today and I only paid $35.00 for it. Minty condition. It's begging for a lens hood.Can I use one of those off the shelf rubber no name jobs of do I need a special one to prevent vignetting?

Thanks in advance

As others have said, you don't need a special hood. Any 49mm threaded hood such as the Olympus for 35mm or 28mm lens will work. I have too many metal semi-wide 49mm screw thread hoods. Contact me off list if you want one almost for free.

Ed
Lmatthew@indy.rr.com

Steve Roberts · Jan 29, 2007

telkwa said:
this lens continuously sells for more than it is worth. the performance is fairly average for a pentax prime, but if you like 40mm focal length

When I had an ME/Super (can't remember which) I used to use like the combination of that and the 40mm pancake as a "travelling light" combination. I also had the appropriate snub-nose case front.

I never had any complaints about the lens, not that I particularly had great expectations of it, but it did seem rather prone to dust getting between the elements and needed frequent dismantling.

Steve

telkwa · Feb 5, 2007

I guess the size of it increases its worth. I don't mind lugging heavier lenses around and try to squeak every bit of enlargement out of my 35mm shots (so I prefer better optics).

Good point though.

Eric Rose · Feb 5, 2007

I've got one of these lenses and have made tack sharp 11x14's from color negs shot with it. Great little lens.

Black Dog · Feb 5, 2007

Quote=I've got one of these lenses and have made tack sharp 11x14's from color negs shot with it. Great little lens.

My LX with 40mm 'pancake' attached is more compact than many a so called compact-a really nice little lens and it's still working fine after being treated to some pretty foul conditions {sand, rain etc}.

smc-M 40mm f2.8 Pentax

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