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Talk:Pentax K10D

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Lens coverage

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I really don't think the lenses should be covered here. Perhaps we need a page or pages on Pentax' lens range. Matthew Brown (Morven) (T:C) 23:55, 21 September 2006 (UTC)[reply]

They aren't covered, they are barely presented. Feel free to copy this material in the Pentax K Mount or Pentax lenses article. --Marc Lacoste 14:12, 22 September 2006 (UTC)[reply]

Release Dates

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November 30 was the official Japanese release date, apparently, but some pre-ordered cameras arrived to US customers in mid-November. I'm not sure there is any kind of authoritative site for this, though? Matthew Brown (Morven) (T:C) 21:23, 30 January 2007 (UTC)[reply]

Aperture Ring statement

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In my opinion the aperture ring compatibility is incotrect. Both cameras mentioned in the article support the manual lences in manual mode. The aperture ring also has a setting where the aperture can be manually altered. The green button (hyper program button)besides the shutter also does metering hence it is incorrect to say it always stays full open.

The section was wrong and I have corrected it.Racklever 21:58, 2 August 2007 (UTC)[reply]

I think the section before was not completely clear. The problem was not with USING a pre-A lens, but with metering with it. Without the aperture reading mechanism, the body cannot know the difference between the wide-open aperture and the set aperture, and thus meters incorrectly. Thus, metering is only accurate at wide-open aperture, or if the lens is stopped down to meter, which can be done. This only affects metering (and thus aperture-priority mode, and the metering indicators for manual) - not the actual operation of taking the picture, which remains fully functional.
I've reworded the section to make it clearer that this is a metering issue. Matthew Brown (Morven) (T:C) 06:24, 3 August 2007 (UTC)[reply]

DNG

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I'm surprised not to find a mention that this camera can save raw pictures to DNG. I thought wikipedians would be receptive to that kind of argument. Is it because Pentax's DNG is not fully documented? I know it's possible to have private, undocumented fields in a DNG but dunno whether Pentax did it or not... Mercen 14:02, 26 July 2007 (UTC)[reply]

"Crippled" KAF2 mount

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Sometime a long while ago someone removed the word "crippled" from the description of the KAF2 mount used on the K10D and the KAF mount available on the previous Pentax digital SLRs. I suspect they thought those words were simply perjorative and meaningless, and should be removed in the interest of neutral point of view.

The problem is that the words are not meaningless and the meaning of the article is altered by removing them. Although Pentax, apparently, does not distinguish between the previous and crippled versions of these mounts, they differ by the lack of the stop-down coupler on the body, which removes full compatibility with pre-A lenses. This is a major difference if you plan to use older lenses. Bojidar Dimitrov's Pentax K-Mount Page (http://www.bdimitrov.de/kmp/) uses "crippled" as the description of these mounts, and most Pentax enthusiasts appear to follow suit.

The K10D was not the first camera with a KAF2 mount - just the first with the "crippled" version.

I also removed the sentence

This choice trades off backward-compatibility with the oldest manual lenses for the assurance that a compatible lens will always act in accordance with the chosen exposure mode (e.g. full-auto/aperture priority/shutter priority).

Since this, while more a positive POV, is IMO simply untrue or meaningless. All that missing out the stop-down coupler does is remove compatibility with older lenses for no benefit to the photographer. It simplifies the mount, of course, which helps Pentax (and thus possibly reduces the cost, so that may be a benefit to the purchaser) but it only removes functionality. Pre-A lenses are still usable since you can stop-down meter fairly easily, but less smoothly thanks to the removal of this functionality by Pentax. Matthew Brown (Morven) (T:C) 00:42, 5 August 2007 (UTC)[reply]

No, what I said is true, although it is difficult to find a way to say it succinctly and clearly. If you allow manual aperture settings to be used, that can prevent the camera from functioning as intended. For example, when you switch the mode dial to automatic, you will find yourself in a kind of aperture priority mode unless/until you switch your aperture dial to automatic as well. This is because the manual aperture setting on the lens is designed to have priority--that is, the camera body can't over-ride a manual aperture setting, it only has control if you set the aperture dial to "A". So Pentax faced a choice in going to DSLRs: do we leave the aperture ring functional, and let people accidentally take loads of pictures on the same aperture setting because they forgot to switch the lens back to auto aperture? If they put the camera body into automatic mode (or shutter-speed priority), but keep a manual aperture setting, do we make the camera beep and complain? Or do we assume the photographer knows exactly what they're doing, and degrade picture quality by changing the ISO setting to match the available light, since the camera has lost control of the aperture? Pentax chose the third path: most lenses sold in the last 20+ years have at least an auto aperture setting--if we force users to use the auto setting all the time, then we don't have to make the choice between a camera that beeps and complains when you switch modes (and that may make you want to smash it into tiny pieces), and a camera that takes lousy pictures if you forget your aperture dial and switch to an automatic mode. I don't think cost savings was the only consideration here--while I would personally like to have the option of going to a more manual mode by locking the ISO, controlling the aperture with the aperture wheel on the lens, and the shutter speed with a click wheel on the camera body, I can likewise understand the conundrum camera manufacturers face that causes them to choose to break aperture wheel compatibility in favor of a less confusing, less problematic user interface. Fewer problems + lower cost is hard to turn down. Verbatim9 16:23, 22 September 2007 (UTC)[reply]

Your picture Image:Greenwich Park Vista.jpg

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I've just nominated your Greenwich panorama for Quality images candidates. It is a nice picture though a bit oversaturated IMO - Alvesgaspar (talk) 23:04, 26 December 2007 (UTC)[reply]

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