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Archive 2016 · Sigma 150-600mm C vs. Tamron 150-600mm
  
 
Pixphatic
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p.2 #1 · p.2 #1 · Sigma 150-600mm C vs. Tamron 150-600mm


Pixel Perfect wrote:
The larger glass will certainly help minimise vignetting wide open, it's collecting more light from highly skew rays.

I would never use a filter on this sort of lens however, so the cost of such large filters never worries me. I'd prefer a rear mounted one like in the superteles.


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EB-1 wrote:
The minimum front element size would be about 95 mm to achive f/6.3 at 600 mm. That does not mean a 600 mm lens with 105 mm front glass has an aperture of less than f/6.3.
For example, the first 80-200/2.8 Nikkor had a 95 mm filter.

EBH



Thank you friends. Got your points.




Oct 09, 2016 at 06:22 AM
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