Hi Matej,

in case you come to Berlin you can pick up A03 5 Liter packs for 50 cents.
But they are from ORWO and over 20 years old (yet still working).
Other alternatives would be: MACO LP supergrain liquid conc. or E102 universal developer (which is by far the cheapest).
These developers all feature high equalizing capacity and 5-7 minutes for all films. They are extremely easy to use and produce good results especially for beginners. The others are right: A49 or other developers make finer grain and in the end better negatives yet they are much more difficult to use and if I think back to my first years of developing basically all films of the first 3 years are useless because I screwed something up with the dilution or agitation or temperature....
If I had used any of these equalizing developers my first results had been much better.

You can fin all prices in our catalogue for your information.
http://www.fotoimpex.de/Katalog/katalog.html

We can ship to Slovakia.

Regards from Berlin,

Mirko
www.fotoimpex.de