is there any numbers for the focus

Hi
i know that the iso had numbers to choose
and so the f numbers
and so the shutter speed
My quastion is :
is there any numbers we can see or adjust for the focus in the camera ?
i ask this because
when i stand in a distance from a still target and focus by AF or manual
and leave the place and come back to the same place with the same distance
If there is numbers i will choose the same focus numbers
Thanks

I think it's called "distance", and it's measured in meters or feet.

Erik_L wrote in post #13687346
I think it's called "distance", and it's measured in meters or feet.

Made me laugh

Interesting - I looked in LightRoom to see if the Metadata shows the distance, but I cannot see how to get that information to display even when switching around the different types of metadata shown. But the EXIF on Flickr does show the Subject Distance listed in meters.

tempest68: I recall that at one time EOS cameras were guessing this distance information (it's never been precise judging from comments) but at some point it was taken off many cameras. However, it might be back for the latest. I ought to have a look at this.

Yeah, "focus distance" is merely guesswork as far as the camera is concerned. You can use the "distance scale" on the lens, but as far as I know that's it.

The camera does do a good job of recording the focal length, though, when you are using a zoom.

Thanks
But can i see the distance number in the viewfinder ?

Not with any camera I know of, and as we've said, the camera can only guess at the distance, and typically very innacurately!

If recording the distance is an issue, a laser rangefinder may be in your future. Unfortunately, again, I don't know of any way to automate getting that into your picture's metadata - even GPS has required some dodges and relatively mild hacking in the not-too-distant past.

Thanks tony and all
i saw in the market some small digital metering that we can use it to know the room meters
and now we bay so much money on an expensive camera that dont have this digital metering screen

moltengold wrote in post #13687696
Thanks tony and all
i saw in the market some small digital metering that we can use it to know the room meters
and now we bay so much money on an expensive camera that dont have this digital metering screen

Because with a dslr you get autofocus, or you can easily manually focus using your eyes rather than plugging in a distance. No reason to complicate things.

gonzogolf wrote in post #13687712
Because with a dslr you get autofocus, or you can easily manually focus using your eyes rather than plugging in a distance. No reason to complicate things.

yes you are right
Thanks a lot

tonylong wrote in post #13687660
typically very innacurately!

Yup.

According to the exif, subject distance in this shot is 0.41m

Heh! Yeah, there is stuff buried in the Exif, although I don't think it's there for every lens or every camera/lens combo. I've never researched it simply because for one I don't really care and for another one I'd suspect that like your example, Frank, the figure would be out to lunch.

If anyone is really interested, there are Exif viewers out there that show a lot of "stuff" that your "regular" viewer doesn't. For example, I have a viewer called PhotoME that shows a ton of stuff that is buried in the "Manufacturer's Notes". There is in fact a field for "focus distance" way down the list but it won't consistently show anything there.

Opanda, at least the IE version I have, does show the focus distance for Frank's shot above but not for other shots I've checked out, and as Frank points out, it shows it as .41 meters!