How do I find the optimum Aperture for my lenses?

Robbo

Robbo

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Never really looked into this TBH.

But I know each len has its best aperture setting depending what range your shooting.

Anyone know where I can find information on Canon efs 60mm Macro and the 18-55mm stock IS lens....and also tamron 70-300mm.

Or is there a general rule?

I would like to know the close, medium and long range F. on these lenses ideally :)

thanks for any help
 
Stop stressing about peeping at pixels and go and shoot some pictures! ;)

Aperture is more about the feel of your picture and less about pixel peeping. I regulary shoot at f2.8 and below and you won't find me stopping down to get optimum sharpness when I want to shoot in low light or for maximum subject separation.

Most lenses have optimum sharpness around f5.6 to f11 but seriously, don't be overly concerned about it and explore your lenses yourself to determine what you are happy with :)
 
Robbo said:
Never really looked into this TBH.

But I know each len has its best aperture setting depending what range your shooting.

Anyone know where I can find information on Canon efs 60mm Macro and the 18-55mm stock IS lens....and also tamron 70-300mm.

Or is there a general rule?

I would like to know the close, medium and long range F. on these lenses ideally :)

thanks for any help
Click to expand...

Take pictures and look at your results! Just take pictures.
 
Yes I know to just take pictures etc etc

but I'm after the technical information just for pure interest
 
Most zoom lenses are at there sharpest around f8 and midrange of the zoom.
 
Jayst84 said:
If optimum performance is important, you wouldn't own an 18-55.
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...but on that basis all Canon users would have 1d or 5d series and L Lenses..which is not practical \ affordable for all. So if you want to get the optimum out of your existing kit it's a reasonable question :)
 
Jayst84 said:
At the end of the day, nobody really cares, it's the image that counts.
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I care, thats why im asking, if I am doing macro work at 2.5:1 I want the sharpest image I can get, especially if I need to crop in still.

akr said:
...but on that basis all Canon users would have 1d or 5d series and L Lenses..which is not practical \ affordable for all. So if you want to get the optimum out of your existing kit it's a reasonable question :)
Click to expand...

thank you for putting it kindly like that, my reply wasnt going to be so lol

sbowler579 said:
Most zoom lenses are at there sharpest around f8 and midrange of the zoom.
Click to expand...

sjh2008 said:
Slrgear are a good site if you just want the techie info on lenses
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thanks :-)
 
Yep its a cracking site, lots of info to take in, most of it goes way over my head
 
The same info is available at photozone but I find it a bit easier to understand there.

Maybe it's just me.
 
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