Dear photrio-members,
as some of you may remember, some months ago I have reported about my ADOX XT-3 test results. Since then I have done several further very detailed tests with the currently available, final XT-3 version with CAPTURA.
In total I have done so much intensive/detailed tests, that I now can report my final test results.
So here I go:
1. Sharpness, resolution, fineness of grain and sensitivity / speed are on the same (very good) level of original XTOL. No visible differences here.
2. For many films the 1+1 dilution is the "sweet-spot", with overall best performance concerning sharpness, resolution, fineness of grain (more about that please see below, next paragraph).
3. I could generate fine characteristic curves the same way as with original XTOL. Again no visible differences here.
4. In dilution XT-3 behaves extremely similar to XTOL, with one fine difference: In 1+1 dilution with several films XT-3 is delivering a bit better results concerning sharpness, resolution and fineness of grain. Both developers work as a slight semi-compensating developer (a bit flatter curve in Zone IX and X) in 1+1, and have a stronger compensating effect in 1+2.
5. The dissolubility of the XT-3 powder is much, much better compared to XTOL. That is a very nice surprise, as you can dissolve the XT-3 powder very fast in 20°C water (2-5 minutes depending on your stirring technique and speed).
6. The ADOX powder packaging is very good, and you can get all powder out very easily without having any significant rests left in it.
7. XT-3 has the CAPTURA dust binding technology. This innovative technology works really very well. So dust in your lab isn't a problem anymore at all.
Dilution:
I've found over the years that XTOL has the best overall performance concerning sharpness, resolution and fineness of grain with the 1+1 dilution (better results compared to stock solution) with lots of films. The improvements were especially with the parameters sharpness and resolution, whereas the fineness of grain was about identical with stock and 1+1 in these cases. That was already an advantage of XTOL, because with D-76 and ID-11 you can increase sharpness by dilution, but you also then get a little bit coarser grain.
With ADOX XT-3 my results have been that with these films (e.g. Delta 100 / 400, TMX / TMY-2, Acros II) in 1+1 dilution you not only get improved resolution and sharpness, but also slightly finer grain compared to stock solution. The improvements are subtle, and you need big enlargements to see them in comparison. But they are there.
Conclusion:
ADOX XT-3 offers in lots of parameters the same very high quality for which XTOL has had its excellent reputation for.
But in several important parameters XT-3 even surpasses XTOL significantly. Especially the handling is much better and more user friendly.
And if you consider that XT-3 is even much more eco-friendly because of the new buffer system (no borate anymore) and the bio-degradable complexing agents, and that it is also available in both 1L and 5L packagings, we have now an overall significantly better and superior product.
I am very satisfied.
And as this product is "Made in Germany", it is made under extremely high environmental and workforce protection standards. In a democratic state. That may not be important for everyone, but it is important for me.
Best regards,
Henning