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Pentax Lens Review Database » Film Era Pentax K-Mount Lenses » A Zoom Lenses
SMC Pentax-A 35-70mm F3.5-4.5 Review RSS Feed

SMC Pentax-A 35-70mm F3.5-4.5

Sharpness 
 8.4
Aberrations 
 8.0
Bokeh 
 7.6
Handling 
 8.4
Value 
 8.7
Reviews Views Date of last review
17 98,414 Wed October 6, 2021
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Recommended By Average Price Average User Rating
94% of reviewers $49.83 8.06
SMC Pentax-A 35-70mm F3.5-4.5
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Description:
This lens has variable aperture that is faster than that of the fixed-aperture A version at the short end and slower at the long end.



SMC Pentax-A 35-70mm F3.5-4.5
© www.pentaxforums.com, sharable with attribution
Image Format
Full-frame / 35mm film
Lens Mount
Pentax K
Aperture Ring
Yes (A setting)
Diaphragm
Automatic, 6 blades
Optics
8 elements, 8 groups
Mount Variant
KA
Check camera compatibility
Max. Aperture
F3.5-4.5
Min. Aperture
F22-32
Focusing
Manual
Min. Focus
32 cm
Max. Magnification
0.25x
Filter Size
49 mm
Internal Focus
No
Field of View (Diag. / Horiz.)

APS-C: 45-23 ° / 38-19 °
Full frame: 63-34 ° / 54-29 °
Hood
Unknown
Case
Unknown
Lens Cap
Plastic clip-on
Coating
SMC
Weather Sealing
No
Other Features
One-touch Zoom
Diam x Length
66 x 50 mm
Weight
243 g
Production Years
1985 (start of production)
Engraved Name
smc PENTAX-A ZOOM 1:3.5~4.5 35~70mm
Product Code
27107
Reviews
User reviews
Features:
Manual FocusAperture RingAutomatic ApertureFull-Frame SupportDiscontinued
Price History:



Add Review of SMC Pentax-A 35-70mm F3.5-4.5
Author:
Sort Reviews by: Date | Author | Rating | Recommendation | Likes (Descending) Showing Reviews 16-17 of 17
New Member

Registered: June, 2007
Location: London
Posts: 22
Review Date: December 29, 2007 Recommended | Price: $100.00 | Rating: 7 

 
Pros: Unusual, Pleasant output, useful zoom range, nice to use
Cons: Handling a bit weird, not "killer sharp" but still good

This was an ebay purchase for me and I use it on a Samsung GX10 which is my "spare body" I keep at the office (I use a K10D mostly but the cameras are identical anyway).

It's a weird thing to use with its small push/pull zoom and focus ring - particularly unfashionable and especially odd to use on such a small lens. But that's part of the appeal too.

There's something nice and old-school about this, and it's lovely and small with a very useful range that's great for social gatherings - and it's faster than the kit lens by one stop at its longer end.

They call it a "macro" but in reality although it focuses quite close it's hardly a macro - maybe 10:1 or something at best!

As a bit of fun I would give this lens a thumbs up as a holiday/party/fun lens - and I second everything in the previous review about pleasing colour and "vinyl versus CD" feel!!!!
   
Forum Member

Registered: November, 2006
Location: Birmingham, UK
Posts: 97

2 users found this helpful
Review Date: January 10, 2007 Recommended | Rating: 8 

 
Pros: Colour, Tone, Resolution
Cons: Distortion, Soft

I can only give my subjective opinions on this lens, and only for film, not digital. I've done no formal testing at various apertures or at brick wall etc, and for a good while it was my only lens for my camera. Now I can compare it to the A50/1.4 and A70-210/4.

Well, it's a well-made compact lens with a one-touch zoom and variable max aperture, with close-focussing ability that is useful.

Image quality - I find it seems to work nicely at whatever aperture. It seems to do some nice saturated colours at around f8, but wide open the bokeh is also nice, and is where I use the lens most. However, the lens can be quite soft, and I think this is worse wide open. There is pincushion at 70 and barrel at 35. At around 50 both disappear. This normally isn't a problem for anything other than straight lines, and I would say the distortion doesn't usually affect the photo. If you need are shooting architecture you can move the lens to 50 to remove this problem. Resolution is superb - I have enlarged 35mm negatives to 20x30" and they've come out with much more detail (and sharpness, surprisingly) than they had any right to for 35mm.

Overall, I recommend this lens for its colour and overall, pleasing rendition. It's more of an arty lens - you won't get crystal clear, sharp images, but you will get a pleasing image that has a lot of tone and body to it. Maybe a bit like vinyl versus the modern CD ?

Duncan.
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