If Ken Rockwell stating in a lens review that "an f/4.5 lens is slow" is provocative and divisive, what is the following comment¹ to an answer to this question?

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Apparently it was divisive and provocative enough to prompt the owner of the answer to delete it.

¹ Screenshotted so that all may see it

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    divisiveness on the internet...you don't say? Referencing Ken is no different than any other internet blogger. They could be right, they could be wrong, so take it with a grain of NaCl. In this case, Ken was right. f/4.5 doesn't get to hang out in the fast lens club. – Hueco Jan 25 at 19:47
  • @Hueco Wouldn't it be considered fast if it's for an 800 mm though? – G_H Mar 1 at 14:15
  • @G_H nope. A technological marvel, sure. Fast for an 800mm, sure. Fast in general - no, it's still f/4.5. Maybe I'm biased by still shoot film, of which sub 100 ISO is generally in my camera...but "fast" means anything sub f/2.8. I'm starting to look at f/2.8 as not even all that fast...though I think that's more debatable. – Hueco Mar 1 at 16:07
  • @Hueco Interesting. I've still got a bit to learn about the exact nature of aperture and what it really means in practice. I also shoot film and even at ISO 400 it can often be a struggle to get enough light at anything above 2.8. – G_H Mar 2 at 17:52

Caution when reading any review is warranted, regardless of the reviewer. I'm sick of all the positive, glowing reviews that every lens seems to receive. Opinions not backed by sample images should be side stepped regardless of who writes it. I'm glad someone is willing to say that a lens with an F4.5 max aperture is slow, rather than claim it's fast for a telephoto lens with such a large zoom range. Does anyone actually disagree that slow is slow?

Tetsujin's reference seemed perfectly appropriate to me, and I have chosen to replicate it. However, I did not upvote his answer because I thought it was incomplete. Although he deleted his answer after receiving the comment, it doesn't necessarily follow that it is the reason he deleted the answer. Maybe it is only a minor contributor. Maybe it is unrelated. Maybe he'll undelete it after revising it. Only Tetsujin can say.

  • The timestamp of the comment and the timestamp when the answer was deleted are very close to one another. That can certainly imply that the comment precipitated the deletion. I've also seen the same user delete other answers soon after someone posted negative comments to them. – Michael C Jan 22 at 7:36
  • I don't see anything wrong with either Tetsujin's reference or with osullic's comment. Maybe Tetsujin is exhibiting avoidant behavior. It seems you have access to more evidence, but based on just this, without an explicit statement from Tetsujin, we're pretty much just guessing at motives. – xiota Jan 22 at 7:47
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    Eh, I've posted quick answers and found that, when others have commented for any reason that would necessitate me to update the answer, another person may have already posted what I feel is a great answer and nothing more need be said. At that point, it's easier to delete my answer and upvote theirs. – Hueco Jan 25 at 19:44

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