pentax A zoom 30-70 question
Posted 21/11/2009 - 17:32
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Do you mean 35-70mm [sorry to nit-pick]? If so I have borrowed one of these at the moment and agree it's a very nice lens. Like you I found than in aperture priority it tended to over-expose a touch (a very un-Pentax experience!).
To me it has a bit of a cheap feel to it, so it wouldn't surprise me if it was a "kit" lens from the 80s.
In my, admittedly humble, opinion the old SMC lenses produce cracking images on a DSLR condsidering lenses not designed for digital sensors can produce nasty aberrations and fringing.
I had a little play with a 75-150mm earlier today and it also produces lovely colours and sharpness even wide open.
To me it has a bit of a cheap feel to it, so it wouldn't surprise me if it was a "kit" lens from the 80s.
In my, admittedly humble, opinion the old SMC lenses produce cracking images on a DSLR condsidering lenses not designed for digital sensors can produce nasty aberrations and fringing.
I had a little play with a 75-150mm earlier today and it also produces lovely colours and sharpness even wide open.
Matt
GX20; DA 17-70 F4; 18-55 kit; Ricoh 50mm F2; Vivitar 75-205mm F3.8
GX20; DA 17-70 F4; 18-55 kit; Ricoh 50mm F2; Vivitar 75-205mm F3.8
Posted 21/11/2009 - 17:43
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Kris Lockyear
It is an illusion that photos are made with the camera… they are made with the eye, heart and head. Henri Cartier-Bresson
Lots of film bodies, a couple of digital ones, too many lenses (mainly older glass) and a Horseman LE 5x4.
It is an illusion that photos are made with the camera… they are made with the eye, heart and head. Henri Cartier-Bresson
Lots of film bodies, a couple of digital ones, too many lenses (mainly older glass) and a Horseman LE 5x4.
Posted 21/11/2009 - 17:57
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[quote:My only complaint is that on my K10 I have to either stop down by one or post alter every image as it seems a bit over exposed always to me
Alistair[/quote]With an A lens you should not have exposure issues. Set it to the A position and control the aperture from the camera body. Over exposure might indicate slow diaphragm blades, which do not stop down enough before exposure.
The 35-70 f4 or the AF versions of this lens are reputedly the best of in this focal length range.
Alistair[/quote]With an A lens you should not have exposure issues. Set it to the A position and control the aperture from the camera body. Over exposure might indicate slow diaphragm blades, which do not stop down enough before exposure.
The 35-70 f4 or the AF versions of this lens are reputedly the best of in this focal length range.
Posted 21/11/2009 - 18:30
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sorry yes it is a 35-70 not a 30-70, and the over exposure is probably my K10 I have the same problem with the other A series lens I have but not my 18-55 kit lens or th sigma 28-300. Any way it is not a problem I just have to remember to stop down slightly.
anyway was this "cheap" kit lens in the 80's or a catalogue lens?
Alistair
anyway was this "cheap" kit lens in the 80's or a catalogue lens?
Alistair
Assorted Pentax bodies and lenses as well as Sony and Olympus kit
Posted 21/11/2009 - 23:16
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There has never been a 30-70mm lens. The site davex linked to must be an error and the lens will be a 35-70mm, of which there are several versions.
Best regards, John
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141 posts
17 years
BRISTOL ENGLAND
I have never seen one of these for sale on Ebay or anywhere and was interested to know is it a unusual size lens, and was it once a kit lens? and any other info any one might have.
It is a great little lens, and takes nice sharp images [when I get the focus right! Damn these tired old eyes of mine]
My only complaint is that on my K10 I have to either stop down by one or post alter every image as it seems a bit over exposed always to me
Alistair