If a lens is at its optimum halfway thru its aperture range, why does automation always default to the smallest aperture available? (Page 2): You know your probably right -- One of us...

ken_stern Loc: Yorba Linda, Ca

You know your probably right -- One of us is stupid - So I'll on a this time only basis take the collar ---Have "tried" to answer your questions in the past - Got exactly nowhere - So I'll just stay away from all future Chris T concentric circle problems
Once again PLEASE:
Don't buy Canon

mwsilvers Loc: Central New Jersey

Chris T wrote:

You know how it goes ... you switch to SP ... and then let the camera go at it, and it immediately jumps to f29, or thereabouts ... why does it do that?

I don't know what SP is, but using full auto on a Canon DSLR does not immediately jump to a very small aperture. It may use a smaller aperture then one might want, but that's because full automation has no clue exactly what point you're focusing on or what aperture would best serve your goal, since it doesn't know your goal. That's why we set our own apertures.

JPL

Chris T wrote:

You know how it goes ... you switch to SP ... and then let the camera go at it, and it immediately jumps to f29, or thereabouts ... why does it do that?

Seems like a Canon problem? I have never seen this happen on my cameras.

rehess Loc: South Bend, Indiana, USA

Chris T wrote:

After I wrote it, RE ... I did realize how ridiculous it sounds, but, then, I remembered you'd said that the lens I use on it - the Tamron 18-200XR - needs to be "set" in the menus ... and I remember I responded to you - I didn't tell it anything .... do you remember that, RE?

No, I don't remember that.

Chris T Loc: from England across the pond to New England

ken_stern wrote:

You know your probably right -- One of us is stupid - So I'll on a this time only basis take the collar ---Have "tried" to answer your questions in the past - Got exactly nowhere - So I'll just stay away from all future Chris T concentric circle problems
Once again PLEASE:
Don't buy Canon

Yes, one of us mot certainly is ... and it sure isn't me ...

Too late ... I already did ... look below ...

Canons were my FIRST choice in Digital SLRs ....

Concentric circles? ... Oh, great! ... Now you've just underlined your own stupidity - TWICE, Ken ....

Chris T Loc: from England across the pond to New England

mwsilvers wrote:

I don't know what SP is, but using full auto on a Canon DSLR does not immediately jump to a very small aperture. It may use a smaller aperture then one might want, but that's because full automation has no clue exactly what point you're focusing on or what aperture would best serve your goal, since it doesn't know your goal. That's why we set our own apertures.

SP stands for Shutter Priority Semi-Automation, Mark ... a term which Canon has been using since the days of the AE-1 !!!!!

And, I've told you before, I don't USE FULL AUTO on any of my dig cams, because it always resorts to popping up the flash ....

I've also specified elsewhere in this thread, it doesn't apply to my Canons ... only to a couple of Nikons, and my Pentax K-50 ....

Chris T Loc: from England across the pond to New England

rehess wrote:

No, I don't remember that.

You don't, huh, RE? ... must be the Alzheimer's ...

If I can find it, again ... I will post a copy right here ... howzat?

Chris T Loc: from England across the pond to New England

JPL wrote:

Seems like a Canon problem? I have never seen this happen on my cameras.

Thereyago, again, JPL ... jumping to the wrong conclusions ...

I've already specified, elsewhere in this thread, it doesn't apply to my three Canons ...

Only, to two of my Nikons and to my Pentax K-50 (which, btw - all use third-party lenses) ... which could have something to do with it ....

But, then - two of my Canons - the Rebels ... also use third-party lenses ... and it doesn't happen with them ...

Neither does it happen with my one Nikon that uses a third-party lens, either ... so, I suspect it's all in the way the electronics in those three were designed ...

ken_stern Loc: Yorba Linda, Ca

The sound of:
One (1) Hand Clapping !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

rehess Loc: South Bend, Indiana, USA

Chris T wrote:

You don't, huh, RE? ... must be the Alzheimer's ...
If I can find it, again ... I will post a copy right here ... howzat?

Since this whole thing depends on your memory

Chris T wrote:

After I wrote it, RE ... I did realize how ridiculous it sounds, but, then, I remembered you'd said that the lens I use on it - the Tamron 18-200XR - needs to be "set" in the menus ... and I remember I responded to you

you'll need to find where I said the thing you think I said.

JPL

Chris T wrote:

Thereyago, again, JPL ... jumping to the wrong con... (show quote)

I do not doubt what you say, but I do not even find this SP setting on any of my Nikons.

Maybe the Pentax has it.
Well, yes it is strange that the camera jumps to f29. Are some other settings that might force the camera to do this, ISO for example? My Nikon cameras are very good at predicting the rigth exposure and the setting for it as far as I am not limiting their choices with what I decide to control. I hope you find a solution, but can not easily figure what you have done to make the cameras act like this.

dsmeltz Loc: Philadelphia

JPL wrote:

I do not doubt what you say, but I do not even fin... (show quote)

Wasn't this part of Hitchhiker's Guide to the Galaxy? I think the improbability drive produces a picture of a potted plant and a whale plummeting toward the ground at f/29.

Chris T Loc: from England across the pond to New England

rehess wrote:

you'll need to find where I said the thing you think I said.

Oh, right, RE ... when I have a week to spare ... I'll do just that ....

You know, it'd be quicker if you'd just cast your mind back a little ....

ken_stern Loc: Yorba Linda, Ca

I also can't find a "SP" setting on ANY of my recent and or ancient Canon Cameras -- Which even includes after I dug-out my circa 1968/69 Canon FT QL & found NO MENTION of the mysterious "SP" setting

Chris T Loc: from England across the pond to New England

JPL wrote:

I do not doubt what you say, but I do not even fin... (show quote)

JPL ... shutter priority semi-automation on Canon DSLRs is named TV (Time Values) on the dials ...

On Pentax DSLRs - it is also designated TV for Time Values ... there's also a setting designated TAV - which I presume stands for Time AND AV ....

Shutter Priority semi-automation on Nikon DSLRs is designated as just "S" ...

Whilst Shutter Priority semi-automation on Sony alpha SLTs (and ILCs) - is also designated "S" ....