Recent content by Bumba

Thanks everyone for the help. I think I'll give the Protectan a try as it's still available i the UK and not too expensive. Just wish Kodak would give a more accurate time span for their chemicals as it seems 6 weeks is a massive understatement for ra4

Thanks for all the help everyone. How decent is the shelf life when using gas to protect chemicals? Could I keep concentrates fresh for 6 months possibly? Pentaxuser I keep my working solutions in wine bags and that seems to be working really well but I can't help feel that my chemistry might...

Hi, I don't process in high volumes so usually have chemicals sitting around for a few months. I use the Kodak RA RT and mix up 5 litres at a time in one go. I was wondering if anyone has any experience with Tetenal Protectan and if it works well on a long term basis (around 6-8 months). I was...

I don't think it was the lamp because it was a fairly new lamp which had been working well with my TRA transformer. The second I try my new EST transformer then it blew. The EST isn't in best condition so I'm thinking it's not effectively stepping down the voltage.

Hi, I'm back but I didn't want to make a new thread. I managed to pick up one of these Durst EST 305 transformers but when I plugged it in, it blew my bulb. It was definitely the bulb because I had a spare so I replaced the bulb and plugged in my Durst TRA 305 (the unstabilised version of this...

Hi everyone, hope you're all doing well. I was just wondering if the pH level of a developer is a direct representation of it's activity? Would a developer at the same pH produce identical results or is it not that simple. Does oxidation effect the pH of a developer? Thanks

Hi everyone, I'm back. Hope everyone is doing well btw. The Kodak docs give data for up to 27°c but I've found 25°c to be best for ease with my set up because the temperature is a bit more stable over a session. I've found that if I develop for longer than suggested it starts to develop a bit...

Hey Kino thanks for the reply. My enlarger has a colour head so the lamp is centred automatically by some retaining clips so I'm not sure if it's down to that

Sorry I'm back. It turned out to be the bulb holder. I changed that and it was a big help. Now I'm having a bulb problem and it definitely to do with the bulb. If I reposition the bulb in any way the colour shifts (new and old bulbs have the same problem). I just put in a new bulb and tried it...

I'm back and have had limited success. Anyway, I changed my bulb holder and that made a massive difference and helped with a bunch of problems I was experiencing. My new bulb was used in my old holder and the ceramic has browned off and the ceramic is also very thin and missing on one edge and...

I'm picking up a new holder tomorrow but does anyone have any tips on how to connect it? The old one connects to a small junction box. Do I need to crank down the screws when I wire the new one? Also do the wires need to connect physically to the mains wires or does the junction box handle that...

I left it over the weekend and a few days in order to save my sanity. Couldn't even look at my enlarger. Today I thought I'd tackle it so I cleaned out my bulb holder vigorously with a small screwdriver and the resulting test strip looks very nice now. Hopefully that was what was causing the...

Sorry, I'll do my best to address these points. All three exposures were made with the same filtration, f stop and time. I was trying to test if I was getting any consistency. They should be exactly identical if everything was working correctly. They were developed within hours of each other...

My last bulb had corrosion on the terminals. Could corrosion on the bulb holder cause these kind of problems. Anyone know how to open up one of these holders?

Hi Pentaxuser, you've definitely seen these before as I'm having problem upon problem in my darkroom unfortunately. Everything was the same including exposure time and filtration. In theory they should all be identical. The top was the first one I made and the bottom the last one I made. The...