About an unblinkingeye / HP5+ recommendation...

[Juan Valdenebro]

Here,

Ilford HP-5+ developing times

there's a recommendation (the two first sets of times, by Anders) for 35mm and 120 HP5+, with very different EIs and development times for both formats...
Can someone please elaborate on the reasons?
Thanks.

 

[Sirius Glass]

Ilford HP5+ development times can be found here for 35mm and 120 films in XTOL with various EI's and development times & temperatures

 

[aparat]

Here,

Ilford HP-5+ developing times

there's a recommendation (the two first sets of times, by Anders) for 35mm and 120 HP5+, with very different EIs and development times for both formats...
Can someone please elaborate on the reasons?
Thanks.

It seems to me that those recommendations are for very specific types of negatives, most likely preceded by extensive testing. Even if you take them literally, you are unlikely to obtain the exactly same results. I would suggest following the manufacturer's recommendations, as @Sirius Glass suggests, and then, doing your own testing to determine what works for you. By the way, even if the same emulsion is used for 135 and 120, there might be subtle differences in how each format responds to exposure and development, which is probably what the author found out.

 

[Andrew O'Neill]

Very strange... how did my HP5 and Pyrocat-HD data end up there??

 

[john_s]

Very strange... how did my HP5 and Pyrocat-HD data end up there??

That's how the internet works a lot of the time. I agree that it's a bit cheeky to not ask you: you probably would have agreed, given your generosity in sharing results of your experiments.

I've done a lot of searches lately about some medications, ailments and nutrition and I have been shocked at the number of different sites having word-for-word identical text, with no attribution.

 

[Juan Valdenebro]

Very strange... how did my HP5 and Pyrocat-HD data end up there??

Amazing.
I had not seen your name there, Andrew.

 

[MattKing]

Very strange... how did my HP5 and Pyrocat-HD data end up there??

Maybe the site's operator, Ed Buffaloe, thought that someone from Saskatchewan wouldn't mind ?
It might be fun to contact him and ask.

 

[Andrew O'Neill]

It's quite possible that I sent the data to him years ago, and just forgot. It's fine that it is there. I don't mind. If I ever misplace my data, now I can just go to Unblinkingeye for a reminder! It is a great resource!