Tasco made the 705 in the early 1970's, I do not know for how many years or the number made. They also offered the same model scope in a straight power during this time period. Mod.706 in 12X, 707 in 16X, 708 in 20 X and 709 in 24X. I've never used one but have looked through a number of them and never noticed a problem. I can't comment for certain on their clarity at the range or in the field as I have never used one to actually shoot but the clarity appears to be decent. The Redfield 3200 was offered in 1968 through 1982. It also came in 12, 16, 20 and 24X. I had one of each and used them all for target and field. The 12X I currently use on a Rem 700 in 6MM Rem, the 16X is on an FN Mauser in 220 Swift, the 20X I recently sold and I don't remember what rifle I used it on, the 24X I have mounted on a Mauser built by Bob Wallack many years ago in 219 Don Wasp. It was originally on a 243 Win. I've had it since about 1970 and it's still clear as a bell and mechanically perfect. All work quite well at the 100 and 200 yard range and in the field. The best shot I've made with the Swift was a woodchuck at 450 yds. according to the rangefinder. I actually jumped up and shouted when I heard the plop and saw it drop down flat. I have a new, unused 3200 in 24X that I picked up a couple of years ago but I haven't decided where I'm gonna put it yet. Too many toys, not enough time.