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Comment by JonSchick posted on You're invited to an evening in London 19 March at 11/02/2010 - 20:40
Comment by JonSchick posted on Pentax-M 28mm f3.5 - worth owning? at 11/02/2010 - 20:39
In addiiton, Cosina-Voigtlander make great manual focus primes for PKA - 20mm, 40mm and 58mm. All are excellent and give the Ltds a good run for their money in both build and image quality.
I have not used it, but the Pentax 12-24 is generally very highly rated by owners, and covers a very useful range unless you are seriously into superwide territory.
Best equivalent to your 70-200L would be the 50-135 f2.8 DA*, which performs brilliantly.
Comment by JonSchick posted on Return to Pentax at 11/02/2010 - 19:26
I've never owned or use the f3.5 lens so take this with a big pinch of salt, but everything I've read from people that do know the lens suggest that it is the best of the K mount 28s that Pentax has ever made.
For £40 I think you should keep quiet about where it is and snap it up quickly!
Comment by JonSchick posted on Pentax-M 28mm f3.5 - worth owning? at 11/02/2010 - 19:20
So three of us already, possibly four if Greytop does not have other family commitments - who else is up for a mellow evening of beer and photography?
Cheers,
Jon
Comment by JonSchick posted on You're invited to an evening in London 19 March at 11/02/2010 - 19:17
Comment by JonSchick posted on camera set-up at 11/02/2010 - 14:36
The 55-300 is undoubtedly better than the 18-250 at the longer end - and performs very well for a consumer level telezoom. Even wide open at 300mm, the centre remains acceptably sharp and you can get some decent colour and contrast too. My main gripes with the lens are (1) size - although it is similar to the Tamron and Sigma equivalents so that's just what you have to put up with and (2) focus hunting at longer lengths - using quick shift MF can sometimes be a must with this lens. Unlike Tamron and Sigma 70-300 lenses, it does not offer a "macro" capability, if that's important (the 18-250 does).
The 18-250 is very good at what it does, and I think people could do much worse than have one of these and supplement with a few well-chosen primes or better zooms for when needs must. At the wider end, it is at least the equivalent and possibly better than the kit 18-55. Although at 18mm you do get a fair amount of barrel distortion and vignetting until it's stopped down a fair bit. It starts to fall behind the longer you go - and I think by the time you get close to the 250mm maximum, it would be easy to see the difference between the two lenses. The centre always remains acceptably sharp with my copy though, but bokeh can be ropey. The 55-300 gives slightly warmer colours and punchier results.
One other thing about the 18-250 - because it is an internal focus design, it's actually only 250mm when focused at infinity - and rather less than that the closer you are to the object you're photographing. Probably not a big issue for most people.
Comment by JonSchick posted on DA 50-200 WR at 11/02/2010 - 12:56
Better than the 18-250 at longer lengths, not as good as the 55-300, but good enough for those occasions when you want a compact and lightweight lens that'll cope with the British weather. It's so much smaller than the 55-300, that I use it more, even though the latter provides superior image quality.
Comment by JonSchick posted on DA 50-200 WR at 11/02/2010 - 11:55
Incidentally, I would need to investigate further, but I think it's also possible that the "native" ISO of the sensor in the K-7 is ISO200 rather than 100 - so you may also get increased DR by sticking with that setting in any case. Not all cameras perform at their best at the lowest possible ISO setting.
Comment by JonSchick posted on camera set-up at 11/02/2010 - 10:10
Comment by JonSchick posted on You're invited to an evening in London 19 March at 11/02/2010 - 09:19

