Originally posted by Penview52 The most acceptable findings are these;
For DA F 4-5.8 the sharpness of object is 8.2 out of 10
For DA L F 4.5-6.3 the sharpness of object is 8.6 out of 10
They have both 25 degrees wide horizontal angle of view.
Sorry for the confusion: the first line is for DA L, and the second is for DA. a typing error is the most to blame.
If you don't agree, then you don't agree the reviews where I got it.
Those aren't measured ratings, but estimated ratings. But they usually are pretty close. I checked the forum ratings for the DA 70 and DA 21 ltd. and while pretty good for centre sharpness, the forum ratings don't seem to notice the 21s much softer borders. You could easily make a case the 21 should be rated lower
The DA 70 is rated 4.5 out of 5.
The DA 21 ltd is rate 3 out of 5.
The DA 55-300 is rated 2.5.
Test sites that do actual measurements can have very different results.
You may not agree with these ratings, but from my perspective, you buy the focal length you need,
You can also look at the forum ratings as a measure of how happy people are with the lens. But, if you're used to a DA* lens you own't be giving a 55-300 a rating over 9. But if you don't you might not. And it's unlikely a DA* owner is going to buy a 55;300. I have the DA*55-300 6.3 PLM, and I quite like the lens. But my evauation would be, if my DA*60-250 is a 9.7, the DA 55-300 is an 8.5. Still a good lens but let's not get crazy with marks over 9 out of 10. And I definitely wouldn't bet on any of the 55-300s being much different from the others.