Who said they didn't?

G

Much of that is irrelevant, and some of it is wrong.

See this from Wikipedia:

"Incompatibilities do exist, however, and adventurous F-mount users should consult product documentation in order to avoid problems. In particular, many electronic camera bodies cannot meter without a "CPU" enabled lens, the aperture of G designated lenses cannot be controlled without an electronic camera body, and non-AI lenses manufactured prior to 1977 can cause mechanical damage to later model bodies unless they are modified to the AI specification."

Compare with Pentax:

All Pentax DSLRs will work with all Pentax bayonet lenses. Metering is a separate step with the oldest lenses, and has to be done wide-open when these lenses are used on a K10D.

G

The mount is physically the same, but few modern cameras are able to work with old lenses because they expect to find electronic connections that simply aren't there.

Nonetheless, Nikon lens compatibility is much superior to Canon.

If you are addicted to using old lenses, there is no reason not to buy a K10D if it suits you in other ways. You'll just have to work around the metering problem. One way is to meter wide open, and then calculate the necessary adjustments in your head.

It's very easy. If the meter tells you to use 1/1000 sec at f4, and you want to use f8, then you reduce the aperture by two stops to get f8, and increase the shutter interval by two stops to compensate - which brings you to 1/250 sec.

That's all there is to it.

G

Check your facts:

"The original F-mount appeared in 1959, and lenses that were produced from then until about 1979 are usually referred to as Pre-AI. These lenses are dangerous on current Nikon bodies. With the exception of a modified F5 and the D40/D40x, mounting one of these lenses on your new Nikon will result in damage, so don't even try it. "

http://www.bythom.com/lensacronyms.htm

G

I feel for you.

Here's my advice:

Part 1
Sell the K10D, and all your lenses.
Buy a shedload of Canon lenses from 1975.
Buy a modern Canon camera.
Try and fit the lenses.
Check the prices of modern Canon lenses with shake reduction.
Post to a Canon newsgroup saying how disappointed you are.

Part 2
Sell the Canon, and all your lenses.
Buy a shedload of Nikon lenses from 1975.
Buy a modern Nikon camera.
Try and fit the lenses.
Check the prices of modern Nikon lenses with shake reduction.
Post to a Nikon newsgroup saying how disappointed you are.

Part 3
Sell the Nikon, and all your lenses.
Buy a shedload of Pentax lenses from 1975.
Buy a Pentax K100D camera.
Try and fit the lenses.
Post to this newsgroup saying how happy you are.

Part 4
Sell the K100D, but keep all your lenses.
Buy a Pentax K10D, plus a Katz screen for fifty bucks
Wonder why you didn't do this in the first place.

Moral: Do your research and be realistic.

G

Owls, pigeons, and parrots have a larger amygdala than other birds, which means they have a greater capacity to learn. Other birds do everything by instinct, apparently.

But I hadn't realised quite how much these birds can learn. This owl needs an agent.

G

You're most welcome to come over here and cut the real stuff, Clarky. And the hedge.

Cheers

G

The train?

You were asking about what looks at first glance to be a purely web-based operation, and a box-shifter to boot.

With things that might go wrong, and be difficult to fix, I prefer to buy from a shop where I can go in and speak directly to the manager.

G

For complicated and expensive gear, I prefer a bricks and mortar shop.

G

Yes, but in future many new Pentax lenses, and probably some third party lenses, will have SDM. Also, these lenses will become available second-hand. In two years time I suspect there will be a dozen lenses available with SDM, some of them at prices much lower than £600.00.

G