[John B]

I have three K mount manual Pentax zooms from long bygone days: SMC 45-125mm, SMC A 70-210mm, and SMC A 28-135mm (a heavy beast). How good are these lenses?

[247nino]

could this be one ? 45-125?
https://www.pentaxforums.com/forums/pentax-slr-lens-discussion/24692-poor-man...-50-135-a.html

Hin is a good friend of mine
from what ive seen, this is an awesome lens
and if you want to sell yours, well what the heck, PM me a price, keep note
*unemployed single father who is a student with a mortgage*

[DJey]

Well I'll get the 70-210 f4

[John B]

My 45-125 doesn't say "M" on it. It's an earlier lense and just says SMC. Any opinions on the 28-135?

[ddhytz]

Another good MF zoom is A35-105 f/3.5.

[Lowell Goudge]

I have three K mount manual Pentax zooms from long bygone days: SMC 45-125mm, SMC A 70-210mm, and SMC A 28-135mm (a heavy beast). How good are these lenses?

You'll need to try them out and judge for yourself.

You can also look in the pentax lens database within this forum rfor reviews.

2 of the 3 are KA mount lenses which means that in the A setting they will work just fine in all modes on pentax DSLR's

I would keep them if you have an intent to going to digital, because they will bridge the gap nicely until you decide what you want

[maxwell1295]

Tha A70-210mm is a very good lens. Of the 3 you listed, that would be the one I'd grab. It's big and heavy, but it's also nice and sharp with great contrast and color. It's also a constant F4. I just replaced mine with the F version, which is a little slower at the long end but just as good in terms of IQ.

The A70-210, A35-105, and A35-70/F4 all seem to be very highly regarded Pentax zooms. Having a little shootout with the ones you already have is a good start. IMO, the lenses with the A setting have an advantage in their ease of use.

[John B]

Thanks for the input!