Keep in mind that Hammer Films in those days was a low budget producer of horror films. TCM's Robert Osborne even pointed out that many sets were used more than once (sound familiar, Stooge fans?) and told viewers to look for set similarities in sets in 2 of last Fridays features, PLAGUE OF THE ZOMBIES and THE REPTILE; the same sets were used in several scenes. Also, more than one feature was often in production at the same time. Quantity over quality, I guess.
Therefore, I wouldn't watch them expecting stellar acting or expensive looking special effects. But that's half the fun watching. They actually have a very nice look considering the limited budgets within which they worked.
Hammer may have been low budget by say....GONE WITH THE WIND standards, but for a horror studios in the 60's, they were pretty top of the line. They had distribution rights with just about every major Hollywood studio and have some films that I would consider genuinely good.
Yes, Hammer has camp elements, no doubt, and that can be fun, especially in the later films where they got r-rated on us, but nowhere near as camp as an Ed Wood film or something like THE BEAST OF YUCCA FLATS. I believe Hammer, at their best, did have stellar actors and respectable production values, so for a 1960 Terrence Fisher directed film like BRIDES OF DRACULA, I actually have standards. Some of the acting performances disappointed me, and not in a fun way.