Quite a few versions of this lens. That one's the NON-SMC version not quite as good. It's actually made in a different factory along with the Takumar version.

This the SMC version. It's on the nameplate and it doesn't have the RED wart on the side. It has a Black one.

http://www.bdimitrov.de/kmp/lenses/zooms/short/F28-80f3.5-4.5.html

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I'm gobsmacked ........ I'll have to go for a lie down ........ Just tried mine to see if it was correctly centred ......

HARDLY ANY DIFF LHS - CENTRE - RHS AT 50MM F9 !!! WOW!!!

Only had time to do 50mm. Never seen a lens that good before even my Holywood 28mm f/2

Edit:
Quick screen grab of 1:1 vew at about 1000w reduced in Zoner to 800w slight resharpen for loss due to reduction.
CENTRE - LHS - RHS in that order. Can't see any difference




K-5 200ISO Handheld

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Ha! Ha!

Why not just use DISNEYx8

If they ask for letters and numbers..... I use ......
TwoAndAHalfMen

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The front element is so close the front of this lens it can get easily scratched. On APS-C at least you can screw a 58mm to 52mm reducer ring and use a 52mm hood. My hood is threaded at the end to take the 58mm lens cap, so I don't have to remove the hood.

Similar to this one, but they don't say what thread is on the end.....

http://www.ebay.co.uk/itm/FOTGA-52mm-Screw-Mount-Standard-Metal-Lens-Hood-for-Ca...

I also use the more expensive Heliopan hoods like these (bottom of page) on other lenses such as the 35mm f/2.4 ...

http://www.pentaxforums.com/forums/10-pentax-slr-lens-discussion/33808-heliopan-...

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Nice one Vic

The SMC version is excellent. Very close to a prime at around 50mm f/5.6 - f/8.
I've never checked, but a cropped 50mm might be better than using 80mm.

FF lens as well.

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It will crash if it detects that the CAP Key isn't being used

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Official announcement confirmed for 18th Feb. 2016

Interesting shot of the rear screen + other shots (link below)
Looks like the rear screen could get in the way of the LV button?

https://www.facebook.com/media/set/?set=a.765540500150930.1073741833.43655553971...

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This lens test taken with a KiiS and 12-24mm that's poor on the RHS shows that a good body isn't much use if the lens is bad..... see barge shot (bottom/right) large and normal versions.

https://www.pentaxuser.com/review/pentax-smc-p-da-12-24mm-f-4-0-ed-al-lens-revie...

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Yes the lens is very important, but if you pixel peep very few lenses are good at the edges and will be better on one side than the other...... You can't actually see this when you reduce down to monitor size.

I once tested this theory with a crude merge of the best parts two shots and a full shot with a lens that was poor on the left. Hardly any difference at monitor size and even the dodgy join was almost invisible.

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