Aperture blades
May 28, 2016 09:52:49 #
Marionsho wrote:
Thanks for the post cyan.
I had no idea about the double starburst.
If you would have looked it up yourself, i may never had learned this.
I don't ask a lot of questions here, due the unwanted attacks that alway seem to come up.
Marion
I had no idea about the double starburst.
If you would have looked it up yourself, i may never had learned this.
I don't ask a lot of questions here, due the unwanted attacks that alway seem to come up.
Marion
Right....but most of the people are very willing to help.
May 28, 2016 10:41:17 #
mwsilvers wrote:
...you just wanted to make us dance.
Some people like to dance.
May 28, 2016 11:29:00 #
Partially stop down the lens and count them.
--Bob
--Bob
cyan wrote:
How would I find out the number of aperture blades my lens has? Canon 18-270mm is what I have.
May 28, 2016 13:06:55 #
cyan wrote:
How would I find out the number of aperture blades my lens has? Canon 18-270mm is what I have.
It has to be another Lens Mfg. Canon 18-270mm does not exist.
The Tamron Lens 18-270mm for Canon has 7 blades.
http://www.the-digital-picture.com/Reviews/Lens-Specifications.aspx?Lens=492
Craig
May 28, 2016 14:09:06 #
cyan wrote:
How would I find out the number of aperture blades my lens has? Canon 18-270mm is what I have.
Just rack it all the way to closeup focus, manually, then aim at a faraway light source and set for maximum zoom at three stops down from wide open. Count the sides of the polygon. That's the number of blades...
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