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-   Pentax / Samsung dSLR, K Mount Mirrorless (https://forums.steves-digicams.com/pentax-samsung-dslr-k-mount-mirrorless-73/)
-   -   Pentax DA 18-250 Lens (https://forums.steves-digicams.com/pentax-samsung-dslr-k-mount-mirrorless/135361-pentax-da-18-250-lens.html)

rritter Jan 15, 2008 10:59 AM


Opps should have posted this in the lens section.



Hi



Anyone have experience or know how good/bad this lens might be for an all purpose lens? Also a place to buy at a good price.


bigdawg Jan 15, 2008 10:34 PM

rritter wrote:
Quote:


Opps should have posted this in the lens section.



Hi



Anyone have experience or know how good/bad this lens might be for an all purpose lens? Also a place to buy at a good price.

No problem really..I'll just bump this to the top so someone can answer you!



Dawg @ wrk


IntrepidWalker Jan 16, 2008 5:50 AM

None with the Pentax but I have had a brief go with the Tamron from which the Pentax is cloned &, by the way, costs somewhere in the region of UK£100 more that the Tamron.

I have also previously tested a Tamron 18-200 & found that, within the constraints of a 'super zoom', to be not bad at all.

My test with the Tamron 18-250 suggested that is had more vignetting than the 18-200, even at longer focal lengths which I found a tad unusual. Reviews tend to support this:

http://www.photozone.de/Reviews/Cano...report--review

This shot with the Tamron was taken at 250mm (375mm in 35mm terms) @ f9.5 & 1/500S & does show a darkening at the corners which I've assumed to be lens vignetting.

http://content.imagesocket.com/images/IMGP7431_Ee65.jpg

The graphs don't really show that much difference between the 2 lens:

http://content.imagesocket.com/images/Chart1a3.jpg

IntrepidWalker Jan 17, 2008 8:05 AM

I reprocessed the image in Adobe Lightroom using the lens correction facility with the following results:

http://content.imagesocket.com/image...7431_LRa3f.jpg

I've since 'bit the bullet' & purchased the Tamron 18-250mm @ UK£269 (including Hoya UV filter & standard 6 year warranty) as opposed to the Pentax @ UK£360 (no filter included & Pentax 1 year warranty).

rritter Jan 17, 2008 10:12 AM

Thanks so much for your post. This helps alot.

IntrepidWalker Jan 18, 2008 7:22 AM

My Tamron 18-250mm came this morning; it's pouring with rain & the forecast doesn't look much better for next week!!

Even the cat's fed up & asleep

http://content.imagesocket.com/image...6_E_DCEe5a.jpg


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