Pentax F 28-80/35-80?


ocatoro

Link Posted 02/02/2013 - 08:27
just mooching around to see what I can get hold of to play with really.

These 2 seem to be very reasonably priced. is that because theyre common? or because theyre no good?

namely the F 28-80mm f3.5-5.6 and the F SMC 35-80mm f4.5-5.6.

both 25-40. seems a steal really.

how do they compare to the DA 18-55mm kit lens from my k100d super?
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Hardgravity

Link Posted 02/02/2013 - 09:13
Those are the old 'Standard' lenses from the film days.

They're not in the DA* league, but if you just want to play then get and enjoy.

I have copies of both and use them only on my film cameras now. The 'short' end not being short enough for my taste on a DSLR.
Cheers, HG

K110+DA40, K200+DA35, K5+Tammy 18-250, a bag of lenses, bodies and other bits.

Mustn't forget the Zenits, or folders, or...

I've some gallerieshere CLICKY LINK! and my PPG entries.

ocatoro

Link Posted 02/02/2013 - 09:29
ah ok, if the image quality isn't all that good, then i'll leave the cash til i can pick up something better quality.

just been reading some reviews, and it seems the F type isn't all that sharp. but the similarly priced FA versions are actually very sharp (according to review-ists). will do some more searching, maybe take a punt.
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Last Edited by ocatoro on 02/02/2013 - 09:29

Algernon

Link Posted 02/02/2013 - 09:31
Pentax must have thought a lot of the 28-80mm f3.5-4.5 there
are about 6 versions of it inc. 'A' Series and Takumars.
The cheaper versions seem to have been made in the same
factory as the Takumars and have a red dot/wart near the
aperture ring.

The one to go for is the SMC (original) version which at the
time of release cost 200. Quite rare because of the original
cost, but they do crop up.

See also this thread.

The 24-90mm is also a very good lens.

-
Half Man... Half Pentax ... Half Cucumber

Pentax K-1 + K-5 and some other stuff

Algi
Last Edited by Algernon on 02/02/2013 - 09:33

ocatoro

Link Posted 02/02/2013 - 09:35
haha, oddly enough i've just been reading that thread. some nice results there. i've seen an FA SMC 28-80 for cheap. that's just a slightly newer version,right?
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PeterKR

Link Posted 02/02/2013 - 09:58
ocatoro wrote:
just mooching around to see what I can get hold of to play with really.

These 2 seem to be very reasonably priced. is that because theyre common? or because theyre no good?

namely the F 28-80mm f3.5-5.6 and the F SMC 35-80mm f4.5-5.6.

both 25-40. seems a steal really.

how do they compare to the DA 18-55mm kit lens from my k100d super?

My initial reaction is "Don't get these !"

Have a look at my thread "Lens weight and camera shake ?" where there was much discussion on the relative merits of the DAL 18-55 and other lenses in the 28-80 range.

I have a Sigma epsilon AF 28-70 f3.5-4.5 which I'm very pleased with.
However, the general advice was to go for the SMC F 35-70 and avoid the 35-80 and 28-80 in F or FA variants.

I now have an F 35-70 which I got for less than the sums you quoted and the Sigma only cost me 15 ! Keep looking !

Best of luck
Peter

ocatoro

Link Posted 02/02/2013 - 10:31
thanks for the input peter. I will dig your thread out now.
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andrewk

Link Posted 02/02/2013 - 13:04
PeterKR wrote:
I have a Sigma epsilon AF 28-70 f3.5-4.5 which I'm very pleased with. However, the general advice was to go for the SMC F 35-70 and avoid the 35-80 and 28-80 in F or FA variants.

From what I've read and heard, the 35-80 is the one to avoid. I've seen it described as the worst lens Pentax ever made. I have an SMC A 35-80mm and don't use it. I wouldn't describe it as bad, but it is no better than the 18-55mm kit lens over its common focal lengths.

The SMC F 35-70mm that I have spends a lot of time on the camera. I find it quite useful as a walk around lens. It was a little sharper than the kit lens at 50mm, f/5.6 before I used the AF micro adjust function on the K30. It previously front-focussed a little (the kit lens was spot on) - haven't had time to try it out "in the wild" yet.

Andrew
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andrewk

Link Posted 02/02/2013 - 16:46
Not exactly "in the wild", but I did hurriedly blag off a few shots with the SMC F 35-70mm in the garden late this afternoon to check whether the AF micro-adjustment had been a success. Most of them are shots of gates, fence panels, clothes pegs in a row and so on - not of any particular interest.

I also took one leaning over the fence, of the view from the rear of the house.




Nothing of any artistic interest. This is a 100% crop from it.



Pretty sharp, but so what? The "so what" is that this is a photo taken by a 25 year old SMC F 35-70mm zoom at 50mm, that was WIDE OPEN at f/4.5. It is sharper than the kit lens, I think. As Algernon says in another thread - "Why carry a load of primes about when one zoom will do the job?"

Andrew
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Last Edited by andrewk on 02/02/2013 - 16:58
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