Originally posted by WaltH I haven't experimented with metering mode. I'm thinking spot mode might be what I would want to try for what I'm asking about. Looks like I need to go back to owner's manual for some re-familiarization.
With A-type (including AF) lenses on your Kr, you can use any Auto metering mode, as well as M, X, B. With non-A-type lenses, any Auto mode (Tv, Av, Sv, P) defaults to AV mode. With A- and M-type lenses, you can use M mode and the Green button for stop-down metering and exposure. When using M-type lenses, I'll often leave the mode switch on my K20D set to TAv, right next to the M setting -- on your Kr, I think that would be Tv. I can shoot wide-open in Auto (remember, it defaults to Av) and then easily quick-switch to M for stop-down shooting.
Quote: One more question, since the K-r has what I believe is a 1.5x crop factor, making the 50mm effectively a 75mm lens on the camera, I will likely look for something to go a bit wider. Budget, though, is a real consideration. Any suggestions on an older, wider-angle lens to look for? I'm not looking to go fish-eye, but being able to shoot a wider landscape shot would be nice. I can't afford a new lens at this point, but if I can find something faster than the kit lenses for not too much money, I'd be a happy camper. Thanks.
If you're used to 135/FF shooting, a 50mm lens on APS-C has the FOV of a 75mm lens on 135/FF, but it remains a 50mm lens. The smaller camera frame crops the image; the lens is just an innocent bystander.
'Normal' focal length is defined by the diagonal of the frame. On 135/FF that's 43mm. On nominal APS-C it's 30mm; on my K20D, it's 28mm. So what was wide on a Spotmatic is just normal on our dSLRs. Unfortunately, wideness on APS-C ain't cheap. Here are my suggestions, mostly based on my own experience.
* 28-31mm 'normal' are best for undistorted 'scapes, stitched-together into panos as desired. I see edge distortion in EVERY lens wider than 28mm. Good cheap 28s abound, and the not-cheap DA31Ltd is reputedly a gem.
* 24mm has the FOV of a 35mm lens on 135/FF -- just a bit wide. Vivitar-Kiron 24/2 in PK-M mount can be had for maybe US$150. Various 24/2.8s may be much cheaper. You may even find a bargain M42 Lentar-Tokina 25/3.5.
* 19-20-21mm have FOV ~equivalent to 28mm on 135/FF -- getting wide. My M42 Lentar-Tokina (also sold under other names) 21/3.8 is a joy and can be had for under US$100. The not-cheap pancake DA21Ltd is another reputed gem.
* 18mm: The best deal for glass covering 18-28mm is... the kit DA18-55. Everything else this wide or wider costs more, often much more. Its slight barrel disotortion at the wide end is easily fixed in PP. This should be your basic wide lens.
* 16mm: The best deal on wider glass is the Zenitar-K2 16/2.8 for about US$200. (K2 means PK-M mount.) This is pretty fishy on 135/FF, slightly fishy on APS-C, with an FOV the same as a 12mm rectilinear. Sharp, fast, cheap, wide -- I love it!
* Wider: I can't talk about the 14-15-16mm recitlinear primes. I *can* discuss UWA (ultrawideangle) zooms (and I'll skip the DA10-17 fisheye). I had a choice a year ago -- I could have bought any of the leading contenders, whether new or old Sigma 10-20s, DA12-24, or Tamron 10-24. I chose the Tamron because of 1) focal range; 2) warranty; 3) price; and 4) Sigma's known QC issues. I am happy. With a coupon, it was US$375 shipped. Now it gets more use than my other wide glass combined.
My recommendations: If you want undistorted 'scapes, stitch panos from 28mm shots. If you want wide and don't mind a little fishiness, the Zenitar 16 can't be beat. If you want a wide usable range, spend more on a Tamron 10-24. Good luck!