Compare and contrast: HD Pentax-D FA 24-70mm F2.8 with HD Pentax-D FA 28-105mm F3.5-5.6
John K
Regards, Philip
I see the disadvantages in terms of speed, width, and weight, John, and given that I seldom if ever take sports or theatrical type photos, I guess the 24-70 offers less than I would benefit from.
Rob, although light is sometimes an issue with architecture (interior) shots, or night scenes in urban and evening landscape situations, yet in these scenarios I tend to prefer the greater depth of field that is offered with a more closed down aperture where of course a tripod or other form of support is needed (walls, lamp posts, trees come to mind). For that extra width, there is the 15-24, a beast to carry around but always worth the trouble.
Philip, I think you have saved me approx £1,000, thank you! It is reassuring to know that at least when at maximum angle, the 28-105 betters the 24-70 in terms of sharpness (and barrel distortion). I have just been looking at the sample photos on this site, and it appears that the 28-105 is not only sharper at edge comparing 35mm focal length, but noticeably so at edge comparing 70mm focal length.
Given that I don't usually need F2.8 (I have other lenses for portraits, or picking out detail etc), and that I have the wider angle in the 15-30, I will be happy with with what I have. Pentax's so called kit lenses; the 28-105 for FF and the 16-85 for APS-C are exceptionally lenses, and good value for money.
The lesson to me is; worry not about hardware, focus on developing a higher level of photographic skill and compositional creativity!

Gareth
Welsh Photographer
My outfit: K1 gripped - K3ii - two Z-1P - Pentax D FA 24-70mm - Sigma 70-200mm OS HSM - Pentax modified DA* 60-250mm f4 - Irix 15mm Firefly - Pentax FA 35mm - FA 50mm - Sigma EX 20mm - FA 28-70mm f4 - Tamron SP 90mm macro - Pentax AF 540 FGZ II
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ronniemac
Member
Oxford
I do have the HD Pentax-D FA 28-105mm F3.5-5.6 which I do enjoy using a great deal, it spends more time on the K-1 than any other lens, but am wondering if the difference in quality is a step up with the 24-70mm F2.8.