details here
http://www.hotukdeals.com/deals/pentax-ks-1-dslr-camera-black-35mm-lens-kit-269-...

includes 35mm lens and body.

As the original Ad is a year old, I suspect Alan will be disappointed.

Carl,

I know exactly what you mean!

Like you, I've done manuals OK. Just need a little warning of the 'Ping! what was that?' bits.

It seems fine, in fact if I hadn't been warned by the listing I may well not have noticed. But if it is reasonably easy to strip....


this thread : http://www.pentaxforums.com/forums/pentax-slr-lens-discussion/201543-da35-2-4-st...

doesn't have much detail but that doesn't look too complex - at least its a prime - the zooms are the ones I've had trouble with in the past.

To be fair, the optics are actually fine - probably looks bad because I had trouble trying to capture the marks - needing to shoot sideways through the rear element.

I've stripped it to the point of getting the aperture ring out and there isnt any sign of water marking inside.

Ideally I'd like to know more about the build before I go any further.

I found someone on the other forum who fixed a manual focus problem through striping and reassembly - I've sent him a pm asking about what he did.

I think so.

this one:http://www.ebay.co.uk/itm/SMC-Pentax-DA-35mm-f-2-4-Prime-Lens-/140909102896?ssPa...

Ideally I'd like to partly dismantle and clean the iris - but I've not found any guide.

I'm struggling to get a decent picture of this



this is the back of a da35al, that doesn't look like the fungus that I've seen in the past on lenses.

Possible that there has been exposure to moisture?

Lens works perfectly - and yes it was an ebay bargain.

distinct brownish lines on a single blade.

Anyone ever stripped down a DA35?

Documents for it?

Any interest in getting a group together and each putting £5 and passing it around?

I'd never noticed this Vic, don't tend to look at exif that closely.

However, now that you've pointed it out - that's interesting!

I can see a couple of different effects - presumably down to the software used to generate the image.

Looking up the details for EXIF I found :
F-stop should be the aperture used to take the picture.
Aperture Value is a calculated value which is defined as 2x ln(f-stop)/ln(2)
(maths here: http://en.wikipedia.org/wiki/APEX_system )
f/4 will work out the same for both though.

It does look as if some software incorrectly puts either the max aperture or F-stop value into the Aperture Value field though. Bear in mind that depending on the mode of shooting exposure compensation might result in slightly funny values as well.

Any idea how the Takumar 28mm compares to the pentax or tamron versions?