Does Pentax SR really work @ 600mm and very low shutter speeds?

**Marc Langille** · 06-05-2011, 06:18 PM

Originally posted by jogiba

Great shots Marc. Was that with your FA* 250-600/5.6 ED [IF] ?

Thank you and yes it's with the FA* 250-600/5.6.

That animated gif is quite funny BTW!!

**.a.t.** · 06-05-2011, 08:10 PM

Originally posted by Marc Langille

I hope I do not confuse the matter in my replies...

Quite the contrary. It's simply that I'm not as knowledgable as most Forums members. Thank you for taking the time to explain it all, Marc.

Tim

**Marc Langille** · 06-06-2011, 03:59 PM

Originally posted by all thumbs

Quite the contrary. It's simply that I'm not as knowledgable as most Forums members. Thank you for taking the time to explain it all, Marc.

Tim

This technique yields great results for me by dampening the movement created by pressing the shutter button - my left hand and face do much of that. AF function is disabled and is separated onto the back panel AF button instead. Then I (hopefully) don't create as much movement since I'm pushing against the back button, not the top when I need to engage AF - which is often with these subjects.

With the K10D, I don't have a dedicated AF button on the Pentax D-BG2 grip. I have to put my hand on the top/bottom of the body (since it's rotated 90 degrees) to still use AF. This means that portrait orientated images are a bit... difficult... (?) when trying to use the AF button...

You are most welcome and please don't hesitate to ask me questions. I'll do my best to answer them - if I can!

Regards,
Marc

ariban · 06-11-2011, 03:59 AM

Terrific images Marc. But then terrific skills too.

And that lens is a work of art.

The first image is K5, handheld, ISO 12800. Topaz Denoise to reduce noise. The poor lil DA L 55-300mm at that.

The second is without noise reduction

Wonder how the 7D would do with a consumer zoom.

Arijit

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06-05-2011, 08:10 PM	#17
.a.t. Site Supporter Join Date: Mar 2011 Location: yesterday Photos: Gallery Posts: 1,261	Originally posted by Marc Langille I hope I do not confuse the matter in my replies... Quite the contrary. It's simply that I'm not as knowledgable as most Forums members. Thank you for taking the time to explain it all, Marc. Tim Last edited by .a.t.; 06-06-2011 at 11:45 AM. Reason: nuance

06-06-2011, 03:59 PM	#18
Marc Langille Site Supporter Join Date: Dec 2006 Location: NW Arkansas, USA Posts: 4,710 Original Poster	Tim, one clarification/caveat for this paragraph Originally posted by all thumbs Quite the contrary. It's simply that I'm not as knowledgable as most Forums members. Thank you for taking the time to explain it all, Marc. Tim This technique yields great results for me by dampening the movement created by pressing the shutter button - my left hand and face do much of that. AF function is disabled and is separated onto the back panel AF button instead. Then I (hopefully) don't create as much movement since I'm pushing against the back button, not the top when I need to engage AF - which is often with these subjects. With the K10D, I don't have a dedicated AF button on the Pentax D-BG2 grip. I have to put my hand on the top/bottom of the body (since it's rotated 90 degrees) to still use AF. This means that portrait orientated images are a bit... difficult... (?) when trying to use the AF button... You are most welcome and please don't hesitate to ask me questions. I'll do my best to answer them - if I can! Regards, Marc

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06-05-2011, 06:18 PM	#16
Marc Langille Site Supporter Join Date: Dec 2006 Location: NW Arkansas, USA Posts: 4,710 Original Poster	Originally posted by jogiba Great shots Marc. Was that with your FA* 250-600/5.6 ED [IF] ? Thank you and yes it's with the FA* 250-600/5.6. That animated gif is quite funny BTW!!