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Pentax A 35-70 f4 smc

Algernon
Posted 11/05/2016 - 18:04 Link
Good idea to return it. The focusing ring needs to be right.

There are plenty of them around and they go for a lot less than they are worth on ebay.

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Half Man... Half Pentax ... Half Cucumber

Pentax K-1 + K-5 and some other stuff

Algi
melness
Posted 11/05/2016 - 20:08 Link
Algernon wrote:
Good idea to return it. The focusing ring needs to be right.

There are plenty of them around and they go for a lot less than they are worth on ebay.

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I know it's only a cheapo lens but I'm a VERY tight Scot so it has to be right
Thanks
Sean
johnriley
Posted 11/05/2016 - 21:17 Link
It may be normal though, so if it takes good pictures why return it? If the price was low, it could be worth keeping.
Best regards, John
melness
Posted 12/05/2016 - 06:20 Link
johnriley wrote:
It may be normal though, so if it takes good pictures why return it? If the price was low, it could be worth keeping.

When I look through the view finder to focus ,the wobble is quite pronounced and it just feels like end is going to fall off .
Thanks
Sean
johnriley
Posted 12/05/2016 - 08:24 Link
That may be a little less than normal and a bit more worrying....
Best regards, John
davidwozhere
Posted 13/05/2016 - 00:17 Link
No. It shouldn't behave like that !
Both the *istDS and the K5 are incurably addicted to old glass

My page on Photocrowd
melness
Posted 14/05/2016 - 10:01 Link
After having a wee think plus proof of how good/sharp this copy i have is ,i'm going to keep it,wobble as well lol .



Sample of how sharp this lens is ,even after a very heavy crop . Image is untouched apart from the crop .
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Thanks
Sean
Edited by melness: 14/05/2016 - 10:02
Algernon
Posted 14/05/2016 - 11:59 Link
That looks good and on the K20D no sign of purple/green fringing (CA). I was trying the lens on my K-5 yesterday and it does suffer from CA on that body. Zoner has a CA correction tool which lets you select purple/green fringing with a dropper and remove it. It also lets you mask the area to change so that you don't change any other greens etc.

This is a crop of the corrected Wainright bottle which suffered from CA (at f/8 ). I took the same shot with the Pentax FA 50mm f/2.8 Macro and couldn't tell the difference apart from no CA.

Comment Image

--
Half Man... Half Pentax ... Half Cucumber

Pentax K-1 + K-5 and some other stuff

Algi
Edited by Algernon: 14/05/2016 - 12:04

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