On Jan 10, 2007, at 8:43 AM, Cory Papenfuss wrote: >> I have a new K100D, and am looking for a fast, wide (roughly 12mm) >> lens. >> Any suggestions? >> >> I've been thinking about the 16mm Zenitar fisheye lens. From what I >> have seen, it comes in several versions. As a Pentax K mount, with >> the aperture lever, and an M42 screw mount, among others. Both >> versions have advantages- the K mount would be more convenient, the >> M42 mount would be more versatile- It (and an adapter) would work on >> my Canon 10D. >> >> How does the aperture selection work in the M42/adapter? Judging by >> the pictures I've seen, it has the stop down pin on the mount, but >> no auto/manual aperture selector on the side. I have a Yashica lens >> set up this way, and I can only use the lens wide open- no way to >> depress the pin, so the iris will stop down. >> >> Assuming you can get the M42/adapter version to stop down for >> exposure, are there any other quirks that might influence me one way >> or the other? >> > I've got the Zenitar 16/2.8 in K-mount. I use it relatively > frequently when I want a fast/wide. If I had rectilinear Pentax > glass in > that range (other than the kit 18-55), I'd probably use the Pentax > instead. Trouble with the Zenitar is that it's not very fishy on > the 1.5x > crop DSLR. It's more like a rectilinear lens with more than normal > barrel > distortion. Still, I find barrel distortion no more distracting than > ultra-wide rectilinear distortion, so I use it as a regular lens. > > WRT K vs. M42, that's a tough one. If you plan to stick with > Pentax from now on, the K-mount is more convenient in most respects. > Focusing that sucker is tough to do accurately without a split- > prism aid > IMO, so stopped-down-focusing with an M42 is probably even more out > of the > question. That means that each and every shot that requires > refocusing > will require "unstopping, focusing, stopping, metering, shooting." > With a > K-mount version, it's just "focusing, metering, shooting." > > In all, really nice lens. A bit flare prone, but not nearly as > bad as my Peleng 8mm fisheye or Vivitar/Kiron 28/2. > > -Cory > > --
Thanks for the help. I think the K-mount is the way to go. I have a Tamron 12-24 mm for the Canon- that is what got me on this wide angle kick. So the "convenient" argument wins over "versitile". Ideally, this will be a stop-gap lens until I get the Pentax 12-24 mm. or... B&H has a Tamron 11-18mm f4.5 - 5.6 listed as "Coming Soon, Price TBD" http://www.bhphotovideo.com/bnh/controller/home? O=6976&A=details&Q=&sku=363813&is=REG&addedTroughType=categoryNavigation Another reason to wait a little while... Cheers Beaker -- PDML Pentax-Discuss Mail List [email protected] http://pdml.net/mailman/listinfo/pdml_pdml.net
