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03-22-2011, 07:08 AM   #1
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DA 55-300 Max Aperture?

I know the max aperture for this lens is 4 on the short end and 5.8 on the long end, but what I want to know is at what focal lengths is there a change to max aperture and what is that aperture? Thanks.

03-22-2011, 07:23 AM   #2
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In my experience in the tele, it's:
- f/5.6 at 260mm
- f/4.5 at 190mm (~200mm?)

This makes it much better than the DA 50-200 f/4-5.6 (ignoring the far better optical in the DA 55-300 f/4-5.6 as well), which doesn't hit f/4.5 until 135mm.
03-22-2011, 07:23 AM   #3
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QuoteOriginally posted by L33tGreg Quote
I know the max aperture for this lens is 4 on the short end and 5.8 on the long end, but what I want to know is at what focal lengths is there a change to max aperture and what is that aperture? Thanks.
The only thing I remember is that it stays 4.5 till about 205 mm.
03-22-2011, 08:34 AM   #4
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QuoteOriginally posted by Rondec Quote
The only thing I remember is that it stays 4.5 till about 205 mm.
That sounds about right. I believe I've seen f/4.5 at 205mm as well. I usually end up shoot with the EXIF showing 190mm though.

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