NOT HAPPY with my DA 35mm F2.4AL

Still27
Posted 13/12/2011 - 11:48 Link
I have just received my lens from Amazon Special delivery and have to say I am not impressed with the image quality of my first few shots when compared to the same shots taken with my DA*16-50mm. I know there is a great difference in the price but I did expect better IQ with a PRIME lens.
I will probably take some more shots, this time with a tripod but as the 16-50 shots were also hand held I really think I will be returning this Hot Cake before it is even cooled.
Bill
K5+Bigma+BushHawk Shoulderpod.
K5+16-50DA* + 10-17DA Fisheye + 50-135DA* + Sigma 70mm Macro + DA35 2.4..
Slik Pro 700DX tripod.
https://www.flickr.com/photos/pixellie/
Jonathan-Mac
Posted 13/12/2011 - 12:07 Link
That's a shame. Do you want to post any examples?
Pentax hybrid user - Digital K3, film 645 and 35mm SLR and Pentax (&other) lenses adapted to Fuji X and Panasonic L digital
Fan of DA limited and old manual lenses
DOIK
Posted 13/12/2011 - 12:13 Link
Mine is pin sharp at f2.4, I did not relise how sharp it was until I got a new monitor.

John
JohnX
Posted 13/12/2011 - 12:18 Link
I take it is an IQ rather than focus issue? You have fine-tuned the AF?
Still27
Posted 13/12/2011 - 12:19 Link
I will put some images on when I have done a proper test
Bill
K5+Bigma+BushHawk Shoulderpod.
K5+16-50DA* + 10-17DA Fisheye + 50-135DA* + Sigma 70mm Macro + DA35 2.4..
Slik Pro 700DX tripod.
https://www.flickr.com/photos/pixellie/
johnriley
Posted 13/12/2011 - 13:47 Link
If you're not impressed, then you probably have a faulty example. Send it back and get aniother and I would expect all will be fine.
Best regards, John
Still27
Posted 13/12/2011 - 14:04 Link
It seems to be a focus problem, these are the first two shots taken one with 16-50 and one with DA35.



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Pentaxophile
Posted 13/12/2011 - 14:10 Link
Try focussing in Live View to rule out focus error.

The second shot looks noticeably colder, I'm not sure what caused that!

It should definitely outperform the 16-50, most noticeably wide-open, then levelling off towards f8. The 35mm f2.4 is a lens which wants to be used at or near maximum aperture, that is where it shines, with lovely sharpness, contrast and smooth bokeh.
Still27
Posted 13/12/2011 - 14:17 Link
I have now taken some shots on Manual focus and the DA35 is about as good as the 16-50, I have adjusted the AF Fine Adjust which was Back Focusing a bit. But the AF seems rather hit and miss at near Ifinity.
Bill
K5+Bigma+BushHawk Shoulderpod.
K5+16-50DA* + 10-17DA Fisheye + 50-135DA* + Sigma 70mm Macro + DA35 2.4..
Slik Pro 700DX tripod.
https://www.flickr.com/photos/pixellie/
Still27
Posted 13/12/2011 - 14:35 Link
Taken on Manual
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Taken on AF
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Still27
Posted 13/12/2011 - 14:38 Link
Both shots were focused on the Satalite Dish
Bill
K5+Bigma+BushHawk Shoulderpod.
K5+16-50DA* + 10-17DA Fisheye + 50-135DA* + Sigma 70mm Macro + DA35 2.4..
Slik Pro 700DX tripod.
https://www.flickr.com/photos/pixellie/
johnriley
Posted 13/12/2011 - 15:00 Link
There also seems to be a DOF or camera shake problem, as nothing is sharp in the second image.

If a tripod and the same aperture was used for both shots then I don't think focusing is the problem. I'm still going for faulty lens.
Best regards, John
Gwyn
Posted 13/12/2011 - 15:09 Link
I agree with John.

If you contact Amazon they will organise a replacement - though it may not get to you for a while due to the demand. They will give you a post paid label so you can return the faulty one free of charge. They don't tend to quibble of exchanging goods.
Algernon
Posted 13/12/2011 - 15:20 Link
Try a shot with the lens set at infinity in manual and f/8
If it's sharp it's an AF problem which isn't uncommon with
24-35mm lenses there's hardly any movement involved. That's
why I've always used them on INF and manual.

My 35mm f/2.4 hasn't arrived yet
Half Man... Half Pentax ... Half Cucumber

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

Algi
Still27
Posted 13/12/2011 - 15:20 Link
I have just taken two shots (Hand Held) with my K5 Auto focus set to Auto select instead of Spot and the results are a lot better, so I will play a bit more tomorrow and report back. Thanks all for your helpful inputs.
Bill
K5+Bigma+BushHawk Shoulderpod.
K5+16-50DA* + 10-17DA Fisheye + 50-135DA* + Sigma 70mm Macro + DA35 2.4..
Slik Pro 700DX tripod.
https://www.flickr.com/photos/pixellie/

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