RA-4 Filtrations for Meopta filters
Arthur Brainville (Ybalrid)
- 3 minutes read - 488 wordsThese numbers are in the Meopta filter scale. The meopta color 3 user manual has a conversion table to other filters in case you want to cross reference my numbers.
There are acceptable starting filtration from one sample from what we batch of film I bought, onto whatever RA-4 paper I was able to buy. All RA-4 processing has been done at 35°C, in a kit from Bellini.
Because of where most of those results tend to hover, and because the “it looks alright most of the time” value with usual, good quality film tend to be. I will always use C0 M90 Y90 as the staring value for my Meopta Color 3. This may be due to the combo of paper manufacturer and chemistry I use (Fuji and Bellini). I do not know. But it works for me.
My processing method is described in RA-4 paper development
I make 1L of developer that I do not replenish, I reuse and reuse and reuse up until it craps out.
Fujicolor Crystal Archive and derivates
I recently have done the little experiment of trying to use the same filter pack between Crystal Archive and DP II. Results were extremely close. A very small adjustment in warmth and in density would be required to get the exact same print (although the dyes on the DPII felt a little bit denser and more vibrant, despite the paper being a matte finish rather than glossy.)
ADOX Color Mission Glossy
nota: probably a FUJICOLOR Crystal Archive (the lower end version) paper but does not have branding on the back?
Unless I precise something, the film was shot in the kind of light it’s designed to used with
| Film stock | Cyan | Magenta | Yellow |
|---|---|---|---|
| Kodak Pro Image 100 | 0 | 90 | 90 |
| Lomography Metropolis | 0 | 95 | 90 |
| Kodak ColorPlus | 0 | 100 | 90 |
| Fujicolor Superia X-Tra 400 | 0 | 90 | 90 |
| REFLX LAB 800T (shot with various indor LED lights - none of the pictures on that roll were shot under correct tungsten lights…) | 0 | 65 | 75 |
| ORiginal WOlfen NC 500 (shot indoor under too warm of a light) | 0 | 90 | 100 |
| REFLX LAB 800T (warm indoor LEDs, probably) | 0 | 60 | 60 |
| Fujicolor Superia Extra 400, if you want to warm it up a bit | 0 | 85-80 | 80-70 |
| Lucky C200 under slightly overcast daylight | 0 | 70 | 75 |
| Lucky C200 under flash | 0 | 80 | 90 |
Other papers (Probably either Fujicolor Crystal Archive Supreme, maybe or DP II)
These are from old disorganized notes for last year.
| Film stock | Cyan | Magenta | Yellow |
|---|---|---|---|
| Fujicolor Superia X-Tra 400 | 0 | 80 | 70 |
| Kodak Gold | 0 | 75 | 75 or 60 |
| Lomography CN 800 (indoors cool) | 0 | 80 | 100 |
| Kodak Ultra Max (indoors warm) | 0 | 75 | 90 |
| Phoenix 200 | 0 | 30 | 85 |
I have more prints of more interesting film stocks (ORWO NC500, Phoenix 200) that I may have the numbers written in my notebook, or at the back of them. I will complete these