SMC-F 1:1.7 50mm
Posted 10/11/2004 - 09:30
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Hi Kimbo,
My AF version doesn't retract either. I think it is a function of the small size versus the the size of zooms. The power zooms also zoom to the min length with the coorect mount such as the Z1P. I will double check my 2 "ltd" lenses tonight and see what they do. It is a very good lens and still based on the original design. There are differences in some of the other prime lenses. For instance the F 28/2.8 is a bit of a dog but the FA version is excellent. The zooms are much better than they used to be but you still can't beat a good prime lens both for quality and the brightness of the finder and ease of use.
Kim
My AF version doesn't retract either. I think it is a function of the small size versus the the size of zooms. The power zooms also zoom to the min length with the coorect mount such as the Z1P. I will double check my 2 "ltd" lenses tonight and see what they do. It is a very good lens and still based on the original design. There are differences in some of the other prime lenses. For instance the F 28/2.8 is a bit of a dog but the FA version is excellent. The zooms are much better than they used to be but you still can't beat a good prime lens both for quality and the brightness of the finder and ease of use.
Kim
Posted 10/11/2004 - 09:57
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Hello Kim,
I think you're right, I've just tried my F 35-135 zoom (manual zoom, normally used on my SXF) and that doesn't retract on the Z1-P, so I presume it's a feature confined to the FA series and possibly only to the zooms.
I think you're right, I've just tried my F 35-135 zoom (manual zoom, normally used on my SXF) and that doesn't retract on the Z1-P, so I presume it's a feature confined to the FA series and possibly only to the zooms.
Die my dear doctor, that's the last thing I shall do!
Posted 19/11/2004 - 17:47
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It's a feature of the power-zooms only. Without power, how could they do it?
Posted 21/11/2004 - 21:02
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George,
With regard to the 50mm lens, I was referring to the focussing ring as both the focussing and zoom positions retract on FA zooms.
The Z1-P manual refers to this as a function of FA zoom lenses only, so 'fair enough' - presumably Pentax did not consider the extension of a prime lens due to focus position to be a problem.
It isn't but I would have thought that it was possible (if zooms can do it) and was a little suprised that the lens stayed put when I switched off the camera.
Obviously this feature only applies to FA zooms, as my F35-135mm also does not retract (but this was designed for the SFX), I thought that I might have been missing out on this feature by buying an F50mm instead of an FA50mm, but apparently not.
Incidentally, as the power is supplied by the camera, I thought it would be possible with the FA lenses, whether power-zoom or not as there must be a delay between operating the off switch (on Z series cameras) and the power actually being shut off.
With regard to the 50mm lens, I was referring to the focussing ring as both the focussing and zoom positions retract on FA zooms.
The Z1-P manual refers to this as a function of FA zoom lenses only, so 'fair enough' - presumably Pentax did not consider the extension of a prime lens due to focus position to be a problem.
It isn't but I would have thought that it was possible (if zooms can do it) and was a little suprised that the lens stayed put when I switched off the camera.
Obviously this feature only applies to FA zooms, as my F35-135mm also does not retract (but this was designed for the SFX), I thought that I might have been missing out on this feature by buying an F50mm instead of an FA50mm, but apparently not.
Incidentally, as the power is supplied by the camera, I thought it would be possible with the FA lenses, whether power-zoom or not as there must be a delay between operating the off switch (on Z series cameras) and the power actually being shut off.
Die my dear doctor, that's the last thing I shall do!
Posted 26/11/2004 - 16:56
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Kimbo
Point taken.
George
Point taken.
George
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599 posts
22 years
Coventry UK
WOW, it is fantastic - can't wait to shoot off a few slides
I would have liked a 100mm as I already have a fabulous A series 50mm 1.2 but all my other AF lenses are zooms.
Having not used a prime AF lens before, I was a little suprised that it doesn't retract to infinity when the camera is switched off (as my FA zoom does) and I was wondering if the later FA version does this?
My first impression of the lens (I've had it for less than an hour) is that it's every bit as good as the A series and up to my expectations based on comments from others on this forum.
There aren't many Pentax fixed focal length AF lenses around, so I'd advise anyone who spots one at a reasonable price to snap it up without hesitation!