How do you

FightingFigure

FightingFigure

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get the aperture to stay at the setting you want when you remove a lens from the body?

i've read that when you take the lens off it automatically goes back to the widest setting and i know there's a way to have it stay at the setting you want but i cant remember the procedure. i havent been able to find it via google and the forum search function isn't working for me at the moment

does anyone know how to do it or can you link me to a web page with instructions?


cheers :)
 
What makes you think it will change?

If you are in AV mode and change a lens the aperture (f number) will remain the same as it was for the previous lens.
 
On most moden camera,and the aperture is set within the camera body,so if your shooting in A/P mode,the aperture will stay the same when put the lens back on.

As you mount your lens it will alway go to its widest aperture,for focusing & viewing,but as you press your shutter release,it will close down to the last aperture you set in the body :)
 
the dof button does the trick, thank you!
when i take the lens off i can see the aperture blades inside the lens stay as i have set it

now i need to magic up some more light!

all im trying to do is take a really close up image of my eye
 
FightingFigure said:
the dof button does the trick, thank you!
when i take the lens off i can see the aperture blades inside the lens stay as i have set it

now i need to magic up some more light!

all im trying to do is take a really close up image of my eye
Click to expand...

:thumbs: I had assumed it was something macro related that you were attempting. Good luck with it. :)
 
This only really works on cameras where aperture actuation is physical and made from the camera body to the lens via a series of levers. A lot of modern lenses actuation is electrical, with the mechanics housed within the lens, so you can't actually set the aperture without the camera body. I have an old Minolta MD lens that I use when I'm demoing how aperture works that has physical lever actuation and I can work the aperture without the lens being attached to the body. A most useful illustrative tool. A can't do it with my modern Canon lenses.
 
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