I have not personlally used either one of those. By looking at the numbers the 8 x 25 might pull in a bit more light. I do not like to use anything lower than a 30 objective for purposes of light gathering.

Look at them both, see if they will let you take them outside to examine. See which ones are clearer and put less strain on the eye. I have tried the smaller ones, but they tend to give me headaches. Now I use the Nikon 8 x 36, a little bigger but comfrotable, clear and great for low light.


Good Luck