DA 55-300mm and Raynox 150

Gregor · 03-26-2010, 01:48 PM

Can anyone tell me the approximate minimum focus distance at each end of this set up?

newarts · 03-26-2010, 11:16 PM

Focused as closely as possible:
160mm @ 300mm zoom,
170mm @ 55mm zoom.

Including the thickness of a filter ring.

Dave in Iowa

audiobomber · 03-27-2010, 07:10 AM

Originally posted by Gregor

Can anyone tell me the approximate minimum focus distance at each end of this set up?

I only use the Raynox 150 at infinity focus on the 55-300mm. That's about 210mm from the front element and provides between 1:1.38 and 1.4:1 macro, just by zooming. That's a hell of a lot of range.

I find that if I use minimum subject distance (i.e. set 55-300 at its closest focus), I get fewer keepers. I haven't done formal testing but I suspect that minimum focus distance causes reduced depth of field.

03-26-2010, 01:48 PM	#1
Gregor Senior Member Join Date: Oct 2009 Location: Austin Posts: 161	DA 55-300mm and Raynox 150 Can anyone tell me the approximate minimum focus distance at each end of this set up?

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03-26-2010, 11:16 PM	#2
newarts Inactive Account Join Date: Dec 2008 Location: Ames, Iowa, USA Photos: Albums Posts: 2,965	Focused as closely as possible: 160mm @ 300mm zoom, 170mm @ 55mm zoom. Including the thickness of a filter ring. Dave in Iowa

03-27-2010, 07:10 AM	#3
audiobomber Veteran Member Join Date: May 2008 Location: Sudbury, Ontario Photos: Albums Posts: 6,806	Originally posted by Gregor Can anyone tell me the approximate minimum focus distance at each end of this set up? I only use the Raynox 150 at infinity focus on the 55-300mm. That's about 210mm from the front element and provides between 1:1.38 and 1.4:1 macro, just by zooming. That's a hell of a lot of range. I find that if I use minimum subject distance (i.e. set 55-300 at its closest focus), I get fewer keepers. I haven't done formal testing but I suspect that minimum focus distance causes reduced depth of field.