I refuse to believe that anyone as systematic as you are will be stuck for long.
I also wrote a conversion function for the Ilford EM10 darkroom meter.
To use the EM10 as an enlarging meter, rather than an enlarging comparator, it first needs to be calibrated.Is it possible that you have created a use for my redundant EM10?
To use the EM10 as an enlarging meter, rather than an enlarging comparator, it first needs to be calibrated.
The EM10's linear 0-100 scale needs to be converted to a stops scale. Placing the meter under the lens and noting the dial readings as the lens is stopped down will give a rough idea of the relation of the dial numbers to stops. Be sure to start from 1 stop down from full open - a lens' open aperture number is often optimistic, but stops from there tend to be pretty accurate. Better calibration can be had with a step tablet, be sure to hold the tablet patches right over the meter's sensor.
A calibration scale for one meter may or may not work for another meter. The EM10 isn't a precision instrument although plenty good enough for it's intended purpose.
A problem with the meter is that it uses an inexpensive 'audio taper' potentiometer. Think noisy/scratchy volume control on an old radio. Before calibration it would be a good idea to take the EM10 apart and spray some contact cleaner into the insides of the potentiometer and work it around. The potentiometer can fail and develop dead-spots. Replacement potentiometers are available from Digikey/Mouser/Newark/Farnell. Get a cermet or conductive plastic model, stay away from carbon - I don't have an EM10 anymore so I am not sure which pot will fit.
Is it possible that you have created a use for my redundant EM10? I refuse to change print exposure by changing aperture, so the device (bought as part of a job lot) never found a place in my methods. What does your function convert from/to?
Advice? Like previously stated put some music and brew a big cup of coffee/tea/whatever brew you like. Enjoy the moment.
By the way, get a focus finder. It helps some with difficult negatives. The Meopta Opemus 6 I'm using has a focus "rangefinder" to help focus, but the focus finder can help too.
Marcelo.
And here are a few of my first prints. Please, excuse the shoddy quality. I still have a long way to go:
It's like you had a camera in my darkroom following me. Same mistakes here, yes.Thinking about it, I haven’t yet stopped making rookie mistakes. Only a couple of weeks ago I exposed a full sheet of paper without stopping down the enlarger lens first. And many times I have made test strips with no MG filter under the lens. Or intended to repeat a print half a grade different but forgot to change the filter, so found myself staring in disbelief at a print that looked exactly the same as the last.
I bet I’m not the only one, either.
I agree with others. You can easily spot a great negative. Find a great negative that's also an in interesting image and work with that. Trying to beat a great print from a poorly exposed or composed image is adding a level of difficulty that can put a damper on your enthusiasm for the process.
Thank you all for your encouragement and very useful advice! I have been trying to print, working through my recent negatives. I pick the frames that look easy to print.
Question to y'all: I am finding it hard to see under my red filter safe lights, which leads to mistakes. I use red lights because I used to print a lot on Foma paper and the amber lights would fog it. Since I am currently printing exclusively on Ilford MG RC paper, can I switch to amber filters? They would allow me to see a lot better, if I remember correctly?
I work for short spells and still keep making rookie mistakes. Here are some of the most common ones from the past couple of sessions:
- Forgetting to stop down the lens after focusing
- Forgetting to swing over the filter under the lens after measuring light on the baseboard
- Accidentally moving my flimsy easel, messing up composition - time for a new easel or fixing this one
- Messing up composition due to me not seeing well in the dark
- Picking the wrong filter from the box, also due to me not seeing well in the dark
- Confusing dodging with burning - this one drives me mad
- Accidentally burning in the wrong area of the print
- Kinking a print while trying to lift it with my tongs out of the developer tray - this one hurts, as it can ruin a potentially good print
- Dropping a print on the floor - only happened once, but it hurt
- Putting the negative emulsion side up - I only did it once, but still, it sucks when it happens
- Forgetting to dust the negative before putting it in the carrier
- Failing to see a water drying mark on the negative before the print is dry - happened twice last night
Here are a few more from last night:
Question to y'all: I am finding it hard to see under my red filter safe lights, which leads to mistakes. I use red lights because I used to print a lot on Foma paper and the amber lights would fog it. Since I am currently printing exclusively on Ilford MG RC paper, can I switch to amber filters? They would allow me to see a lot better, if I remember correctly?
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