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womble

Joined: 11th September 2008

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womble
I really miss having a split screen... I must bite the bullet and get one!

K.

Comment by womble posted on K20D Focusing Screen at 30/12/2009 - 01:58

womble
K10D wrote:
Just been out with the 28mm shift and hold my hand up "apart from seeing the image shift through the viewfinder, I dont see how it reduces convergence". It is the third time its ever been on a body.
You have to make sure the body is exactly level either with a hotshoe mounted spirit level or one on the tripod. Unfortunately, 28mm isn't very wide on an APS-C sensor as John said, and so it is less useful for architecture than it is on film. The current Canon equivalent is 18mm and includes tilt as well as shift. What it would be useful for is architectural details like doors, windows etc. where you still want to keep the verticals vertical but would rather not crop the bottom third off the image.

I'd rather like one but they are pricey.

Best wishes, Kris.

Comment by womble posted on 650/f8.5 Soligor at 29/12/2009 - 22:39

womble
Nice image but you have some dust on your sensor which needs to be cloned out.

Best wishes, Kris.

Comment by womble posted on A bit of play in the snow! at 29/12/2009 - 15:15

womble
Mike-P wrote:
thoughton wrote:
Well, this thread got me wondering so I went off and looked up some Adaptall 2 PK mount photos. Genuine ones do have the aperture linkage! After-market ones (like this one) don't.

Thats like the PK one I have.
That could explain our collective confusion!

Comment by womble posted on Tamron f2.8. mf 90mm lens at 27/12/2009 - 20:00

womble
I think you might have been doing it wrong, Mike! If the adapter has the auto linkage, setting the aperture to f/13 will not close the lens down so you can focus wide open. When you press the green button it will stop down for a moment to meter (usually wrongly ), and then will stop down when you take the photo provided, of course, you have "permitted aperture ring".

Having said all that, it is CONSIDERABLY easier to use the A setting on a PK/A mount. We are all agreed there!

Best wishes, Kris.

Comment by womble posted on Tamron f2.8. mf 90mm lens at 27/12/2009 - 19:58

womble
Errr, yes but I don't see what this has to do with focusing at anything other than maximum aperture? Whatever K mount camera I use (from an ME Super through Super As to the K10/20D) the lens only shuts down at the moment of taking the picture. The only wrinkle is the need to push the green button to meter on the K10/20?

Confused!

K.

Comment by womble posted on Tamron f2.8. mf 90mm lens at 27/12/2009 - 19:42

womble
So the PK Adaptall 2 mount doesn't have the "auto" linkages and acts as a preset lens : I surprised anyone bought them even at the time if that is the case!

Best wishes, Kris.

Comment by womble posted on Tamron f2.8. mf 90mm lens at 27/12/2009 - 19:30

womble
thoughton wrote:
I just don't see how that's possible If you're at f13 how can you see anything through the viewfinder? Perhaps in blazing sunshine, but I just don't see how it could work in gloomier weather.
But surely you wouldn't be at f/13 apart from (a) when you press the green button to meter and (b) at the moment you take the picture. I thought that the rest of the time you are at f/2.5, just as with a K or M series lens :

In any case, when using a preset lens (like my Jupiter 85mm) you focus with it wide open and just close it down to meter/shoot.

Cheers, K.

Comment by womble posted on Tamron f2.8. mf 90mm lens at 27/12/2009 - 19:07

womble
Not having an adaptall lens I am a bit confused. I thought the PK mount acted just like an K or M series lens, i.e., set the aperture on the lens, press the green button to meter, but it is still "auto" in the sense that the camera shuts the lens down when you take the shot. The PK/A mount makes the lens like an A series lens. I agree it must be easier with a PK/A mount, but I didn't think the ordinary PK mount made them, essentially, preset lenses?

Best wishes, Kris.

Comment by womble posted on Tamron f2.8. mf 90mm lens at 27/12/2009 - 19:02

womble
I personally find that the very wide angle end of things is very disappointing for landscapes usually and I end up cropping. I use my DA* 50-135mm or the Tammy 70-300 more. I do love the 12-24mm for things like interiors, however. As I used to use a 28mm lens on my film camera a great deal, the 12-24 covers that nicely and 24mm is long enough that I don't have to instantly change back to something else. The constant f/4 is good to have too. If I am forcing myself to travel light I find the 12-24mm, the kit lens and the DA* 50-135mm covers most of my needs.

HTH, Kris.

Comment by womble posted on Considering UWA (again) at 27/12/2009 - 18:10

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