Damn how I hit the & key instead of the % key I'll never understand. P. J. Alling wrote: > SMC FA 20-35mm f4.0, if you give it the 5& slop factor at both ends > allowed by lax standards you get 19-36.75 close enough I would wager. > > William Robb wrote: > >> ----- Original Message ----- >> From: "Sylwester Pietrzyk" >> Subject: Re: Sigma 300/2.8 DG for Pentax >> >> >> On 13.06.2007, at 08:19 , William Robb wrote: >> >> >> >>> The >>> 12-24mm zoom is huge >>> >>> >> 12-24 for FF would be even bigger. Look at Sigma 12-24 - it is bigger >> (87 mm x 102.5 mm vs. 84 mm × 87.5 mm) and havier (600 g vs. 430 g) >> than DA 12-24/4. And Sigma is f4.5-5.6 lens, not fixed f4 like >> Pentax. Oh and you can't use front filters in Sigma ;-) >> >> >> You forget that to get the same AOV on full frame you wouldn't need a 12-24, >> but something in the range of an 18-36. The original istD kit lens (18-35) >> was close to full frame coverage, and while large, wasn't anywhere near as >> massive as the 12-24. >> >> William Robb >> >> >> >> > > >
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