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light meters for high iso? (51200)
Old 01-23-2019   #1
provoke1968
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light meters for high iso? (51200)

i shoot film and am new to light meters because i use my phone. i want to do high iso (51200) max. is there any light meters that go that high that isint extremly expensive? if not is there a safe alternative to get a more accurate expose at extreme iso's and film?
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Old 01-23-2019   #2
mpaniagua
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Sorry, but what film would go that high?

I've done that ISO on my Canon 6D and got more or less usable result. Curious at what film you will try that.

Apology for for not answering your question though.

Marcelo
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Old 01-23-2019   #3
xayraa33
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The Gossen Luna Pro meter can go down to EV-4 at ISO 100, which is very good for light meters.


Quantum Instruments had a meter called Calculight XP that was one of the best for low light reading but it was discontinued in the late 1990s.

When dealing with low lit scenes the film's individual reciprocity failure has to be considered for long exposure, so trial and error experimentation and bracketing (if its possible and even a viable option) is still the best way around it .
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Old 01-23-2019   #4
Mcary
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Quote:
Originally Posted by provoke1968 View Post
i shoot film and am new to light meters because i use my phone. i want to do high iso (51200) max. is there any light meters that go that high that isn't extremely expensive? if not is there a safe alternative to get a more accurate expose at extreme iso's and film?
Though it may not be 100% effective "Math" is a good and cheap way to figure out exposure when dealing with ISO's above the range of a light meter. Example F8 1/15 at ISO 6400 would be F/8 1/60 at ISO 51200
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Old 01-23-2019   #5
Steve M.
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51,200? Is that a typo? I can't imagine any film that can go that high. 6400 is usually as far as anyone goes, and at that ISO you can expect LOTS of grain.
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Old 01-23-2019   #6
Abbazz
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Quote:
Originally Posted by Mcary View Post
Though it may not be 100% effective "Math" is a good and cheap way to figure out exposure when dealing with ISO's above the range of a light meter. Example F8 1/15 at ISO 6400 would be F/8 1/60 at ISO 51200
In fact, F/8.0 1/15 at ISO 6400 is the same as F/8.0 1/125 at 51200.

Cheers!

Abbazz
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Old 01-23-2019   #7
BLKRCAT
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Quote:
Originally Posted by Steve M. View Post
51,200? Is that a typo? I can't imagine any film that can go that high. 6400 is usually as far as anyone goes, and at that ISO you can expect LOTS of grain.
Yes and no. I've pushed to 12,800 here. Granted this is shootin 6x9 but I had all of you fooled with the size of the grain when I posted a sample last year.

I recently processed my first roll of Tmax 3200 in D76 and I have never used that combo before but was really impressed with the look of the film. Even though the amount of grain is very noticeable.

I would like to try pushing that tmax to 12800 in 35mm and see what I get from that.
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Old 01-23-2019   #8
shimokita
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According to the Sekonic website... and unless it's a typo or my misunderstanding...

Sekonic L-858D Light Meter Display Range
ISO Sensitivity: ISO 3 to 13,107,200

Measuring Range (ISO100)
Ambient Incident: EV -5 to 22.9
Reflected: EV -1 to 24.4
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Old 01-23-2019   #9
mpaniagua
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Quote:
Originally Posted by BLKRCAT View Post
Yes and no. I've pushed to 12,800 here. Granted this is shootin 6x9 but I had all of you fooled with the size of the grain when I posted a sample last year.

I recently processed my first roll of Tmax 3200 in D76 and I have never used that combo before but was really impressed with the look of the film. Even though the amount of grain is very noticeable.

I would like to try pushing that tmax to 12800 in 35mm and see what I get from that.
Yeah, but I mean, pushing 2 more whole steps (I mean the OP expected ISO, 51200)? Isn't that kinda stretching it? I would be happy to see the result though.

Best of luck with that

Marcelo

Last edited by mpaniagua : 01-23-2019 at 15:01. Reason: cleared wording.
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Old 01-23-2019   #10
xayraa33
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Forty some years ago pushing 400 asa film to 1600 asa was a big deal and only done in special cases with the resulting loss of shadow detail , too contrasty negs that were hard to print and golf ball sized film grain that made the print look like sharkskin.

But nowadays recent digital cameras can utilise crazy high ISO numbers for their sensor and deliver very acceptable results that we only dreamed about 40 years ago.
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Old 01-23-2019   #11
Contarama
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Fast glass still matters!

Luna pro sbc is my recommendation
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Old 01-24-2019   #12
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Quote:
Originally Posted by Abbazz View Post
In fact, F/8.0 1/15 at ISO 6400 is the same as F/8.0 1/125 at 51200.

Cheers!

Abbazz

Missed a stop my bad
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Old 01-24-2019   #13
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Remember that reciprocity happens at both ends of the scale ... long exposures AND very short exposures.

I meter at ISO 1000 and calculate for extreme sensitivity speeds. Example: 51000 ISO is 51x the sensitivity so f/8 @ 1/100 goes to f/16 @ 1/800 (two stops less light == 4x, 3 stops less time == 6x, multiply to combine == 48x less light ... close enough).

G
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Old 01-24-2019   #14
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It’s almost a futile effort trying to meter film pushed so far.
The effective speed and shape of the film curve coupled with scene dynamic range means the image will fall into shadows and block highlights.
If your using TMZ the practical way is to run trial rolls and see how it looks then meter by eye ... normally the handholdable speed or motion of subject become the limits.
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