If a lens is at its optimum halfway thru its aperture range, why does automation always default to the smallest aperture available? (Page 5): I'm sorry but if you think for a moment...

mwsilvers Loc: Central New Jersey

Chris T wrote:

It's NOT an unreasonable and absurd expectation, a... (show quote)

I'm sorry but if you think for a moment that even 1 out of 10 people responding to your threads reads every one of your posts you are in dreamland.

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

mwsilvers wrote:

I'm sorry but if you think for a moment that even 1 out of 10 people responding to your threads reads every one of your posts you are in dreamland.

Well, if they don't ... they should ... otherwise, their comments aren't valid ....

RichardTaylor Loc: Sydney, Australia

Chris T wrote:

Wow, Richard ... what neat pics ... especially of ... (show quote)

THe problem is that you are shooting at very high ISO values in "resonable" light levels at the wrong shutter speeds.
The solution - reduce your ISO values to somewhere between 100-400(depoending on the light levels) and/or shoot at much shorter shutters speeds. The f29 problem should disapear.
Also if ISO automation doesn't work the way want it to then don't use it.

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

RichardTaylor wrote:

THe problem is that you are shooting at very high ISO values in "resonable" light levels at the wrong shutter speeds.
The solution - reduce your ISO values to somewhere between 100-400(depoending on the light levels) and/or shoot at much shorter shutters speeds. The f29 problem should disapear.
Also if ISO automation doesn't work the way want it to then don't use it.

Richard ... when I indicated I was setting at half the max on both the Nikons ... I meant that that was the top level Auto ISO should embrace ....

I wasn't indicating to you I actually shot at those levels ... I do have the bridge between 100 and 400 ISO always set on all of them ....

The shutter speeds at which I shoot - are predesignated by the lens in use ... and the extension of it utilized for the shot ....

If extended - using the 18-250 ... it's 1/250th ... and if extended, using the 18-200 ... it's 1/200th ... I only slow it down when the lens length decreases ...

Jesu S

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've never experienced this with my Nikon.

Since it is only happening to 3 of your 5 Nikon cameras, it suggests there may be a problem with the cameras.

Does it also happen when you use Nikon lenses with these 3 cameras?

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

Jesu S wrote:

I've never experienced this with my Nikon.

Since it is only happening to 3 of your 5 Nikon cameras, it suggests there may be a problem with the cameras.

Does it also happen when you use Nikon lenses with these 3 cameras?

It does, doesn't it, Jesu ?

Actually, it happens with three cameras, in toto ... two of which are Nikons, using Sigma lenses, the other of which is a Pentax, using a Tamron lens ...

And, yes - it could very well BE because those three are all Third Party lenses ... but I also use a Tokina 16.5-135 on my D7000 ... and have no issues with it ...

I also use that same lens on my EOS 60D w/o any issues ... and another Tamron on my EOS Rebel T3, w/o any issues ....

waegwan Loc: Mae Won Li

dsmeltz wrote:

Are you now using a random word generator to come up with topics?

martinfisherphoto Loc: Lake Placid Florida

Unfortunately you don't know how to reset your NIKON cameras, but that's ok. As already mentioned I'm assuming your ISO is set to high. When placed into shutter priority 1/250 your camera closes the aperture down to get the proper exposure. It's obvious you have to many cameras and not familiar with any of them. I would suggest learning one camera before moving on. If not understanding exposure I would suggest getting the book "Understanding Exposure" IIIrd edition by Bryan Peterson, this may help as well.

Chris T wrote:

Two green buttons, Martin? br br Not on any of my... (show quote)

rehess Loc: South Bend, Indiana, USA

Chris T wrote:

Richard ... when I indicated I was setting at half... (show quote)

I'm not sure I'm understanding this correctly.

You're using camera on shutter priority mode - whatever it's called?
ISO is set to maybe 400?
Shutter speed s set to maybe 1/200?

And the camera selects an aperture of f/29????

RichardTaylor Loc: Sydney, Australia

Chris T wrote:

Richard ... when I indicated I was setting at half... (show quote)

Would it be posible to post an example image along with the exif data where this happens?

mwsilvers Loc: Central New Jersey

RichardTaylor wrote:

Would it be posible to post an example image along with the exif data where this happens?

That's not going to happen. He's on a dial-up modem.

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

rehess wrote:

I'm not sure I'm understanding this correctly.

You're using camera on shutter priority mode - whatever it's called?
ISO is set to maybe 400?
Shutter speed s set to maybe 1/200?

And the camera selects an aperture of f/29????

Yes, RE ... on Nikon and Sony bodies the Mode Dial refers to Shutter Speed Priority Mode as "S"

On Pentax and on Canon bodies - Shutter Speed Priority Mode (as you know) it is called TV (Time Values)

Yes, on the Pentax K-50 ... using the Tamron 18-200 XR Macro - with ISO set to between 100-400 and max. allowable 25,600 - in SP - it goes to f29 ....

Shutter speed set to 1/200th - when using the Tamron at max. extension ... when zoomed back in, the shutter speed is slowed down, accordingly ....

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

RichardTaylor wrote:

Would it be posible to post an example image along with the exif data where this happens?

Perhaps, I can find one, Richard ... I'll take a look ... when I find one for you, I'll shrink it down, and then post it for you ...

Won't be anytime soon, though ....

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

martinfisherphoto wrote:

Unfortunately you don't know how to reset your NIK... (show quote)

Thanks, Martin - for your inaccurate assumptions, and tips ...

I did look at the green icons on my D7100 .... NOT buttons ... and re-set accordingly ... but that's not the one with which I'm having the problems, anyway ...

martinfisherphoto Loc: Lake Placid Florida

I would strongly suggest taking some camera lessons, asking questions here on the Hogg will and have not helped.......

Chris T wrote:

Thanks, Martin - for your inaccurate assumptions, and tips ...

I did look at the green icons on my D7100 .... NOT buttons ... and re-set accordingly ... but that's not the one with which I'm having the problems, anyway ...