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Prova,
I think reflectors being bigger capture fainter objects - like dso's- though one thing not in their favour is colimation. Most refractors are way to expensive cf. similar aperture, though for the same magnification they give tack sharp views provided they are made with good quality glass.
Most i think find refractor's easier for astrophotography of dso's, as they usually have shorter focal lengths - less imaging time required, & the reflectors with short f/l tend to have coma problems, which need to be adjusted for.
For photography of s/system stuff most use reflectors - as they can give the magnification of the planets etc they are after.
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