Nikon d70 iso auto flashing

I never use manual metering except when using an attached flash not the built-in flash while hand holding the camera. On my system, the flash automatically adds its exposure compensation to the camera's exposure compensation. Have I perhaps been lucky in the past and should consider disabling it in the future in that situation?

I think this relates to Robin's question enough that I'm not hijacking his thread. Hope so! Originally Posted by Mike Buckley. Have I perhaps been lucky in the past and should consider disabling [auto ISO] in the future [when using an attached flash not the built-in flash while hand holding the camera]? Paul, You make a really good point about the relative incompatibility of Auto ISO and manual metering, so I have a question about that.

I think this relates to Robin's question enough that I'm not hijacking her thread. Yes you understood my question. And your answers went further than my original questions was asking.

And for that, I and I think others too thank you. Rbn, and Mike, no you have not hijacked HIS thread. Last edited by rawill; 1st January at PM. Repeated from previous page: My opinion is that high ISO probably affects flash adversely indoors. White Balance for one thing. When the high ISO lifts dim ambient up to be significant again meaning, to a usable level , then the TTL BL balanced flash becomes fill flash for the ambient main light which is mixed lighting sources.

And then we discover incandescent lights are orange, and fluorescent may be green. The flash is like Daylight color. This mixed difference causes White Balance problems, which is when you need the filters on the flash , for example, an orange CTO filter to make the flash also be orange, so we can set Incandescent White Balance to correct the incandescent orange, and the flash will match its color. Or, much simpler, and likely better, especially in a fixed studio setting, we could realize that since we are using flash instead, we don't need high ISO.

The flash provides sufficient light. Auto ISO can be turned off. The camera will still work. Indoors, often the ambient level is pretty low level, usually the reason we are using flash. The camera first meters the ambient, and automation sets camera settings to try to expose that ambient properly.

Auto ISO is a variable complication. Remote or non-system flashes are not likely recognized present. ISO is pretty reasonable for bounce flash which has a far distance to go. But the flash definitely has to work into the ambient settings or we can use Manual camera settings too.

Flash introduces a couple more factors. Camera modes S and M always use the users selected shutter speed. Camera models do vary in how these two minimums interact, but generally, the fastest Minimum will apply and hold. But we are using flash instead. Rear Curtain has no purpose if no slow shutter motion ambient blur exists. It just prevents using the excessively slow shutter speed that the dim ambient would otherwise meter. There have been at least three methods of how Nikon Auto ISO works with current digital iTTL flash, so camera models can act different, depending on age.

There is no general answer to how Auto ISO will work with flash, it depends on the camera model. However, Auto ISO still can increase, but only at the last instant when the TTL flash limits out at maximum power, and actually needs the help hotshoe and internal flash, the commander has no communication to do this. Routinely, Auto ISO always only triggers at some extreme of whatever available limit exists.

For examples of this available limit philosophy, camera mode S has to hit the limit at the lens widest aperture before Auto ISO triggers. Discover more challenges ». Leica M11 3. Popular interchangable lens cameras ». Popular compact cameras ». Shedding some light on the sources of noise. Mobile site. Reproduction in whole or part in any form or medium without specific written permission is prohibited.

Flat view. Auto ISO sets to , why? Aug 11, Aug 12, Aug 13, Aug 14, Nikon D review Jan 14, Having Fun With My Nikkor 35 - 8 images. Digital File Naming Issue. David Lal. Chuck Yadmark. Tord S Eriksson. For photographers shooting film, the aperture and shutter speed might have changed from frame to frame, but ISO was always a constant—at least until you finished the rest of the roll of film and at 24 or 36 exposures that was usually a ways away.

Skip ahead to digital—and now, not only can you change the shutter speed and aperture with each image, but you can also change the ISO—on the fly—for each image you shoot. Nikon makes it even more convenient for you to shoot in changing light with Auto ISO. Likewise, if the light gets brighter, the ISO is automatically lowered. You may find yourself constantly going from low light to bright sunshine and shady areas outdoors.

Rather than having to manually set the ISO along with shutter speed and aperture every time you walk into a different lighting scenario, you can set the Auto ISO. The Auto ISO feature tells the camera to change the exposure based on the changing light. As the light in the scene dims, the shutter speed will drop to let in more light, to ensure a correct exposure. When it hits the "minimum" shutter speed that was set, the ISO increases to keep the exposure correct.

The three variables that make up a photographic exposure are shutter speed how much time it takes to make the exposure , aperture how big the hole is that lets light through the lens, and into the camera and ISO how sensitive the digital image sensor or film is to light.

A slower shutter speed lets you blur moving subjects. For example, in an image of moving water, taken with a slow shutter speed, the moving water blurs, taking on a soft white, dreamy look. A fast shutter speed, on the other hand will let you freeze action, such as a bird in flight.