Hi,
Pentax had a new HD Pentax-DA 560mm F5.6 ED AW... approximately 859mm in the 35mm format. Look like Pentax took one of their telescope and convert to a Super-Telephoto lens...
http://www.photographyblog.com/news/hd_ ... 5.6_ed_aw/
Just wonder how fast is the auto-focus speed and how good is the image quality??
Have a nice day.
Pentax HD Pentax-DA 560mm F5.6 ED AW
- weixing
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Pentax HD Pentax-DA 560mm F5.6 ED AW
Yang Weixing
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Re: Pentax HD Pentax-DA 560mm F5.6 ED AW
Yup...Pentax just released a few products as part of the seasonal product launch. But then again, I already have a K-mount 600mm mirror lens already.
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Re: Pentax HD Pentax-DA 560mm F5.6 ED AW
the mirror lens has a low strehl because of the central obstruction
it's cats vs refractors all over again
it's cats vs refractors all over again
- weixing
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Re: Pentax HD Pentax-DA 560mm F5.6 ED AW
Hi,
Have a nice day.
Mirror lens usually very slow, no auto focus (I think only Sony one got AF) and bokeh not nice leh.Airconvent wrote:Yup...Pentax just released a few products as part of the seasonal product launch. But then again, I already have a K-mount 600mm mirror lens already.
Have a nice day.
Yang Weixing
"The universe is composed mainly of hydrogen and ignorance."
"The universe is composed mainly of hydrogen and ignorance."
- Airconvent
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Re: Pentax HD Pentax-DA 560mm F5.6 ED AW
I know guys..was only sharing for fun lah...
I used it previously to image the moon. But now can't do it as my Pentax Kx has been sold off and now waiting for the correct timing to get the newer model
I used it previously to image the moon. But now can't do it as my Pentax Kx has been sold off and now waiting for the correct timing to get the newer model
The Boldly Go Where No Meade Has Gone Before
Captain, RSS Enterprise NCC1701R
United Federation of the Planets
Captain, RSS Enterprise NCC1701R
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