Exposure comp in lieu of ISO adjustment

firemachine69 · Jul 30, 2019

Long story short, I'm shooting 35mm Delta 3200 film in a Nikon F75. This camera does not have ISO settings, it goes by DX coding only. I keep hearing that I should shoot the 3200 Delta at 1600 speeds and have it pushed to 3200 speeds (for better contrast). Am I correct that I want to dial in -1 EV?

Theo Sulphate · Jul 30, 2019

firemachine69 said:
... I keep hearing that I should shoot the 3200 Delta at 1600 speeds ... Am I correct that I want to dial in -1 EV?

No. +1 EV. You want to overexpose a stop - simulating the use of a slower film.

So, for example, if using ISO 3200 and a scene meters correctly at 1/1000 and f/11, +1 EV is like 1/1000 at f/8 (or 1/500 at f/11), which is what your meter would give for an ISO 1600 film.

firemachine69 · Jul 30, 2019

Thanks, it just seems "backwards" but your explanation makes sense.

I should have splurged for that F100...

ic-racer · Jul 30, 2019

firemachine69 said:
Thanks, it just seems "backwards" but your explanation makes sense.

I should have splurged for that F100...

Exposure with the F100 set to 1600 won't be any different than the N75 set to expose at +1, in fact may be worse, due to older exposure system in the F100.

Sirius Glass · Jul 30, 2019

I have both the N75 and F100. The F100 will remember a ISO correction when it is turned on again, however the N75 forgets it.

firemachine69 · Jul 31, 2019

Sirius Glass said:
I have both the N75 and F100. The F100 will remember a ISO correction when it is turned on again, however the N75 forgets it.

I have noticed this.

Sirius Glass said:
I have both the N75 and F100. The F100 will remember a ISO correction when it is turned on again, however the N75 forgets it.

Are you talking about the metering system? The F100 uses spot for AI/AIS lenses, it cannot use matrix metering. It can use the matrix system for any other lenses (G/D/etc.) The F75 can use matrix metering with any type lenses. That's as far as I understand.

Curiously enough, the default metering mode is center-weighed for the F75, even though the much superior matrix meter is available.

Ste_S · Jul 31, 2019

firemachine69 said:
The F75 can use matrix metering with any type lenses. That's as far as I understand.

No. The F75 doesn't have an AI tab so doesn't meter AI/AIS lenses at all.
Cameras that can matrix meter AI/AIS glass are FA, F4 and F6 only.

Sirius Glass · Jul 31, 2019

Ste_S said:
No. The F75 doesn't have an AI tab so doesn't meter AI/AIS lenses at all.
Cameras that can matrix meter AI/AIS glass are FA, F4 and F6 only.

Didn't you forget F100?

jim10219 · Jul 31, 2019

You could also alter the DX coding on the film cartridge and then not have to mess with anything on the camera. In other words, put a small square of electrical tape on the second registration from the top left.

Here's a link to how it works and how to read and manipulate that. https://en.wikipedia.org/wiki/DX_encoding

Ste_S · Jul 31, 2019

Sirius Glass said:
Didn't you forget F100?

Nope. F100 doesn't do matrix metering with AI/AIS glass. Centre weighted or spot like the F601, F801, F90 and F5

firemachine69 · Jul 31, 2019

Ste_S said:
No. The F75 doesn't have an AI tab so doesn't meter AI/AIS lenses at all.
Cameras that can matrix meter AI/AIS glass are FA, F4 and F6 only.

Thanks for the correction. I don't use any AI/AIS lenses.

Exposure comp in lieu of ISO adjustment

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