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Iron chicken
Lens: Pentax x 3 (see text) Camera: K100D Photo Location: Suffolk, England ISO: 200 
Posted By: gramar, 04-15-2011, 08:04 AM

Having recently bought a brand new old stock K100D with DA 18-55 kit lens I soon added a Pentax-M 135mm f3.5 & Pentax-M 50mm f1.7. I tested them recently for sharpness using a garden ornament, the 'iron chicken' as the focal point. The kit lens was tried at 18mm & 35mm for comparison. I think from these results shot in RAW, the manual lens are well worth keeping and I'm impressed by my copy of the kit lens too. What do you think?

Order of sharpness

1. Pentax-M 50mm f1.7
2. Pentax-M 135mm f3.5
3. Kit lens @35mm
4. Kit lens@18mm

Last edited by gramar; 04-15-2011 at 08:12 AM. Reason: photos did not upload from Flickr
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04-16-2011, 01:13 PM   #2
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Very sharp. Keep the manual lenses.
04-17-2011, 04:16 PM   #3
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One question................. Are the eggs hard to crack???? Nice shots!
04-18-2011, 01:58 PM   #4
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Thanks for your input. I do intend to keep all 3 lenses and yes the eggs are very hard and heavy!! justt a shame the chicken is not gold!

04-18-2011, 02:47 PM   #5
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Sharp - could not have told the difference. The glass used in M lenses is pretty good.
04-19-2011, 05:35 AM   #6
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I got lucky with purchase of the M-135 lens. It was an Ebay find advertised as brand new, in the original box and never used. On arrival it was exactly that - brand new so it ought to be good - very good. Equally I am impressed with the 18-55 DA lens. Not especially known for it's sharpness my copy seems quite good too.
04-19-2011, 06:16 AM   #7
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I haven't gotten rid of my K100 yet, may not now.
Seems the K100D is the much-loved little pup of the Pentax family?
04-19-2011, 06:52 AM   #8
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Nice crisp shots! Never eaten an iron chicken...but in my life I have eaten plenty of Crow that was just as tough to swallow.
Best Regards!


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