Here at last! - DA* 60-250


piotro

Link Posted 25/04/2009 - 11:46
And bonus, same stuff with DA 55-300 for comparison.

f/5.6 crop



f/8.0 crop


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http://piotr.zenfolio.com
Last Edited by piotro on 25/04/2009 - 11:47

Mike-P

Link Posted 25/04/2009 - 11:55
piotro wrote:
And bonus, same stuff with DA 55-300 for comparison.


So is the 60-250mm worth 4 times the price for weather sealing and HSM .. personally from the look of those I would say not.
Besides, my 55-300mm sits nicely in my bag along with the 12-24mm, DA* 16-50mm and Tamron macro.
No equipment list here but thanks for taking an interest. My Flickr

johnriley

Link Posted 25/04/2009 - 11:56
If you focus on the sign and take images at various apertures the sharpness of the wall behind will vary because the depth of field will change.
Best regards, John

piotro

Link Posted 25/04/2009 - 12:08
johnriley wrote:
If you focus on the sign and take images at various apertures the sharpness of the wall behind will vary because the depth of field will change.

, I do realise that John, I was talking series of photos at the same aperture.
Just did a test with focus chart and... 250mm, f/4.0 defocusing manually in one direction, getting focus via AF, defocusing manually in other direction, back in focus with AF, and one shot shows front focus, other back focus, or maybe it is K10D... (and K20D nearly 4 weeks with pentax and still no news).
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http://piotr.zenfolio.com
Last Edited by piotro on 25/04/2009 - 12:12

piotro

Link Posted 25/04/2009 - 12:56
Repeated focus chart test few times and conclusion is, with 60-250 if first defocused lens towards the infinity, it has the tendency to back focussing, if defocussed first towards the min focussing distance, then it shows front focus. It still could be the K10D (or firmware 1.3) way of dealing with SDM, tried same test with 55-300 and it doesn't show that issue.
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http://piotr.zenfolio.com
Last Edited by piotro on 25/04/2009 - 13:02

Mike-P

Link Posted 25/04/2009 - 15:11
piotro wrote:
It still could be the K10D (or firmware 1.3) way of dealing with SDM, tried same test with 55-300 and it doesn't show that issue.

If that were the case everyone with a K10D and DA*16-50mm up to DA* 300mm would be screaming blue murder (me included).
No equipment list here but thanks for taking an interest. My Flickr

Greytop

Link Posted 25/04/2009 - 16:08
Not long got back from SRS... the good news is that it was a rouge sample.

The one that SRS replaced it with is much much better at f/4....
Now I'm a happy bunny

Thanks again to the guys at SRS
Regards Huw

flickr

Mannesty

Link Posted 25/04/2009 - 18:41
Glad you got it sorted, good to meet you.
Peter E Smith

My flickr Photostream

RadamFG

Link Posted 25/04/2009 - 18:54
What is a "rouge sample"

Greytop wrote:
Not long got back from SRS... the good news is that it was a rouge sample.

The one that SRS replaced it with is much much better at f/4....
Now I'm a happy bunny

Thanks again to the guys at SRS

leytono

Link Posted 25/04/2009 - 19:28
Would guess its meant to be rogue

Heard of grey imports, but never rouge ones
Last Edited by leytono on 25/04/2009 - 19:29

shim

Link Posted 25/04/2009 - 19:52
Black..... Silver..... and now Rouge

shim

Mike-P

Link Posted 25/04/2009 - 19:54
Mannesty wrote:
Glad you got it sorted, good to meet you.

Hope you made sure they didnt give you the duff one to take back to Spain
No equipment list here but thanks for taking an interest. My Flickr

RichardDay

Link Posted 25/04/2009 - 20:59
shim wrote:
Black..... Silver..... and now Rouge

shim

You lot are terrible, very pithy!
Best regards
Richard Day

Profile - link - (click on About for equipment profile) - My Flickr site - link

bladerunneruk

Link Posted 25/04/2009 - 21:07
Hi folks, well I picked mine up this afternoon from you know where. I'll post some pics here for you to pick over in due time.

I have an F70-210 and a DA200 too so hopefully I'll find time to do some comparisons soon.

I'll try and post a few pics from the pre-production sample too, but probably in a seperate thread to avoid confusion.

hope everyone enjoys their new lens.

my mrs is suggesting I should be sentenced to some hard time helping round the house for buying this one, so I hope it's worth it

cheers

piotro

Link Posted 25/04/2009 - 22:16
Mike-P wrote:
So is the 60-250mm worth 4 times the price for weather sealing and HSM .. personally from the look of those I would say not.

Problem with 55-300 is that it is loosing sharpness towards the edges quite significantly, of course using f/8.0 - f/11.0 helps (but doesn't nivelate) on the cost of slower shutter. 60-250 is much more consistent (not a surprise anyway for this price).
SDM not HSM, Pentax still doesn't do HSM.

Small, bit compressed example pic taken with 60-250:
https://www.pentaxuser.com/photo/Approach-6177
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http://piotr.zenfolio.com
Last Edited by piotro on 25/04/2009 - 22:39
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