Anvh

Joined: 4th July 2008

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Anvh
Mongoose an adapter wouldn't be the right word for it if they used a mount very similar to a k-mount it would be like an extension tube.

I don't know how good the adapter is for the Micro 4/3 to make it into a normal 4/3 mount but it would be like something like that.

Comment by Anvh posted on Why use a 135format lens mount? at 30/06/2010 - 15:55

Anvh
hefty1 wrote:
With the existing line of DSLRs I don't think Pentax lost much by keeping the K mount (indeed they gained in terms of customer loyalty) because when you look at the original (non-micro) FourThirds standard it's hardly any smaller.
The only mount to compare it with is the Minolta Vectis, that's design for the APS so APS-H also, that one has register of 36.00 mm.
The K-mount is 45.46 mm so you can gain around a centimetre.
4/3 is on 38.67mm so that's a good indication what such a mount can do, f/2 zooms anyone?

The maxium aperture of a K-mount at a register of 36mm would be 36mm divided by 42mm is 0.86 just to give an idea what can be done. 35mm f/1 lens wouldn't be just a dream anymore.

Comment by Anvh posted on Why use a 135format lens mount? at 30/06/2010 - 15:32

Anvh
Gwyn, those numbers are minimum speed limits right?
And it's scientificly proven less accidents happen when you drive to red then through green.

Comment by Anvh posted on Colour Vision test at 30/06/2010 - 15:16

Anvh
hefty1 wrote:
My red/green is a bit of a problem but then I knew that anyway. I can tell traffic lights apart so that's the important thing...
Indeed, many with the problem with red have problems with that and with braking lights.

Comment by Anvh posted on Colour Vision test at 30/06/2010 - 14:40

Anvh
flossie wrote:
(don't bother on a crop-sensor though).
Why not?

Comment by Anvh posted on Shift Lens at 30/06/2010 - 13:55

Anvh
GrahamW wrote:
Presumably this is effectively what the manufacturers who use micro 4/3 did.
In a way but it differs because the micro 4/3 doesn't have mirrors inside the body so it's not a good comparison since the camera is different. But the normal 4/3 are indeed like that. They make a mount specially for that sensor size.

GrahamW wrote:
In addition to the effort required to develop the mechanical aspect of a new mount, there would have been a need to develop/adapt a range of lenses to fit the new mount when the first DSLR bodies were released. While many members of forums such as this one may be prepared to use an adapter to use lenses designed for film with a DSLR, I can't imagine it would have been a very attractive marketing proposition for less dedicated users at the time the first DSLRs were released.
The effort into making a new mount will pay off because it makes it far easier to design faster lenses, just look at the 4/3 mount.

They could off course ship the first series of these camera's with an adapter standard so that you can use the lenses you've straight away.
Maybe the word adapter might scare off some people but it doesn't need to be and some might appreciate the smaller size camera.

When you look at the KM, K-X and the K7 you see Pentax is aiming at making smaller camera's a different mount is one that could make a difference.

I wonder if the world would be shocked if they would come with a new mount with the K-8.
You could see it as a blessing since you could make adapter so you can use the lenses of all the other brands besides the 4/3.
I still want the Minotla/sony 135mm stf lens for example, the bokeh of that lens is just amazing and some members here would love a Macro lens Canon make.
If Pentax could pull it off to make such an universal mount with adapters it would be exciting I think.

Comment by Anvh posted on Why use a 135format lens mount? at 30/06/2010 - 13:50

Anvh
Why must someone get that feeling that they need to start all over again?
Since the mount register is smaller you can easily make an adapter for that so I don't see the problem.

The engineering part isn't all that hard, you simply take the existing K-mount, make the register shorter and make the connection of the mount slightly different and presto, you've a new mount which can support faster lenses and make the camera smaller.

flossie wrote:
Canon did go this way with their EF-S mount, which is "digital (crop) only" - and doesn't have many lenses at all. But what would Canon be if they didn't force their users to throw everything away and start again at regular intervals...
The EF-S mount is a slightly different beast, the mount is the same but the EF-S lenses protrude inside the mirror housing, that isn't a problem for APS-C cameras but for the 135format ones you can hit the mirror.

Pentax can't do this because the mount isn't as wide as that of Canon.

Btw you can use EF leneses on the EF-S mount so what do you mean with throw everything away?

Comment by Anvh posted on Why use a 135format lens mount? at 30/06/2010 - 13:34

Anvh
1947lcs wrote:
Very interesting tests. I am not colour blind so there must be some other reason I cant take award wining photos.
Maybe that's the problem, after all Beethoven was also deaf

Comment by Anvh posted on Colour Vision test at 30/06/2010 - 13:05

Anvh
Mike-P wrote:
You can actually delete the PM rather than just the contents.
The receiver then gets an email saying there is a message and when you log in nothing is there.
Thank you, didn't knew that

Comment by Anvh posted on Ghost PMs at 30/06/2010 - 13:04

Anvh
Do some members here have a press-pass or something like that and does it grand you more freedom?

I'm hopefully going to do a professional photo course over 2 months and I believe I can require an official press-pass with a student licenses so it only cost me €60 or so a year. I'm however unable then to get a riod-pass but I don't have interst for that.

Comment by Anvh posted on let''s support the powers that be? at 30/06/2010 - 13:01

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