I totally get it, but wonder, why didn't they just make it so that a small F stop number is a small opening and a large F stop is a large opening?  Why reverse it?

The optical viewing angle of the lens does not change with aperture. Aperature does determine the convergence angle of the rays of light entering the lens and that determines the depth of field. Rays that converge to a point at the imager produce a sharp image, regardless of convergence angle. Rays that converge either behind of in front of the imager plane produce a blurry image. The greater the angle, the greater the defocus. The convergence angle determines the depth of field. A smaller aperture restricts the collection of light to those rays that are more parallel; thus, the convergence angle is small; thus, a longer region of acceptable focus; thus, a longer DOF.

yep thats me. got to get a new camera.

ok

ok ok, dont get frustrated. gee whiz

hey, got it right. dont know how cuz i am still confused

and completly confused.!!!!

Well ...........aren't you the lucky one !!!I have to get back & re read ,I thought I had it ,now I think I've lost it !

Right !!!! The higher the number of the f stop ,the slower the shutter speed that you use ............I think? Because the higher number is the smaller fraction of light getting in so the shutter needs to be open longer to capture the detail ? If I've finally understood this then I shall be back in a week when I have reversed the information in my mind & then I'll be able to turn the page ......................f certainly means fried for me!

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righto. because the lens is not letting enough light in, the shutter has to stay open longer than if the lens were wide open.

mmmmmmmmmm so that takes me right back to the original question over the colour red , I think so anyway....?
Maybe I should try it a few times & see if it eliminates my problem in our harsh light during the summer day time ....

See he upset me with his smart crack & now I've lost the plot ......but .....I shall stay here .....on this page.......& re read.........................& re read..........................................................& re read....................................& re read.............................I am re reading .........please wait 6 months for further comments ...........I thank you for your patience !

YES!!!! I've just been doing this with Jenni-Marie ......!!! Why did you need to use my camera for this shot ????? MEAN! I call that overexposing a friends personnal property !!!



PS! Please tell Digitshuttermug to do just that !!!!!!!! Bet he can't embroider pink butterflies on his panties EITHER!!!!! Go home bad BOY!!!!!

Left hand side for me ???????????? Now I KNOW why your photographs always show the light !!!! They've seen it !!!

Oh I am so pleased you clarified what f meant ..........I though it meant fried ........sorry :-(!

:o)))!!!! Got it ! WOW !!!!!! Always wanted a f3.5!

mmmmmmmmmmmm I always understood Fractions .................what a cool way to put it ........like one guy can be a fraction of another ......maybe ?