All Forum Comments
Comment by stevejcoe posted on USM and DA* 50-135mm at 11/06/2009 - 13:20
I appreciate the difficulty, apologies if this came over as flippant.
(And I have to be careful how much I do at the moment )
Another issue is that I don't really have a location that's suitable for videoing Still, if someone knows anyone with a studio we could borrow (or if someone is willing to stump up some cash to hire one) then that may be possible
Matt
Steve
Comment by stevejcoe posted on who has loads of experience with the metz 58? at 11/06/2009 - 11:18
about just creating a video
I was looking for a small informal group, but I'll bear those requests in mind!
Matt
The thinking behind the post was to enable as many forum members as possible to benefit and for you to maximise the returns for your efforts.
Maybe another forum member would be willing to help with this project?
Steve
Comment by stevejcoe posted on who has loads of experience with the metz 58? at 11/06/2009 - 11:06
Here's a suggestion (actually more of a heartfelt request)
Somebody please video the session (whenever it is), and post it here.....
(As neither Sunday or a weekday will do me any good - being 5 timezones away )
Jamie
Even better why not ask Danny to shoot the video with the K7?
Steve
Comment by stevejcoe posted on who has loads of experience with the metz 58? at 11/06/2009 - 08:22
I expect lenses to last virtually for ever, but these days they are very complex items, so it may no longer be a realistic expectation.
I think this is important bearing in mind that these lenses are factory sealed and not user serviceable.
A concern is how Pentax will support these lenses going forward. How likely will it be to get an economic repair (replacement motor or new seals )in 7 years time?
I previously raised the point of a on/off switch within the firmware that would allow AF focusing via the screw drive. The early versions of the K10 firmware allowed for screw drive on a SDM lens, so it is possible and I would have thought relatively easy.
I accept that having a dual system in consumer lenses would not be economically feasible, however for a * or Ltd lens the higher selling price should easily cover the addition manufacturing cost. In fact if marketed correctly (as a backup AF system)it could become a selling point.
Steve
Comment by stevejcoe posted on USM and DA* 50-135mm at 10/06/2009 - 10:14
If I remember correctly, standard delivery is around 3 days to anywhere in the US.
Steve
Comment by stevejcoe posted on PENTAX stores in San Francisco at 10/06/2009 - 09:27
I think it's designed to wind people up....doesn't matter what you answer you get a random result
Not conclusive I know - Steve
Comment by stevejcoe posted on What type of camera are you? at 09/06/2009 - 18:33
http://tinyurl.com/q6f5tj
Steve
Comment by stevejcoe posted on What type of camera are you? at 09/06/2009 - 11:26
I assume they don't provide it on the basis that they do not expect the USM drive to die. My guess is that in time all the lenses will be USM and the screw drive will be phased out.
In another thread I advocated a simplified version of DA * lenses with the same optics but without SDM or weather sealing. Provided the designs and assembly processes can accomodate this, then I see economy of scale benefits for Pentax and more choice for users.
Steve
Comment by stevejcoe posted on USM and DA* 50-135mm at 08/06/2009 - 12:17
I have heard that if you interupt the two contacts for SDM, then the body will think it's a screw drive lens. Not sure what the best way of doing that is though.
As I understand it, there is no way for a DA* lens to flip between SDM or screw drive as and when; it will always try for SDM so you need to 'trick' the body.
I cant see why they cannot include an option to turn SDM off so that in a situation like this you could at least use screw drive.
Steve
Comment by stevejcoe posted on USM and DA* 50-135mm at 08/06/2009 - 10:54


Well I sent it off to them yesterday so we'll see what they say. I must say the email I had was singularly unhelpful as it just said "send it off to this address".
Steve