Quote:
Originally Posted by Mr.Hitman
I noticed the only way it cracks is if you adjust the up and down too much where it stiffens, the lens cracks more, so a warning not to over tighten.
Hot glue gun the edges and it will have less chance of cracking more.
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I think you might be on to something here actually. I stripped down my 553 quickly this morning and discovered that the adjustment dials are connected to threaded rods that span the width of the unit - why: the reticle light source is physically moved L/R and U/D on these threaded rods. It appears that they were dumb enough to fix both ends - rather than have one end floating and a thrust bearing on the other end - so as you tighten/loosen them to their extremes they squeeze the glass putting a lot of stress on it. On my 553 the glass housing is just made of plastic so it will deform easily as those are tensioned.
Now I'm not sure if this is infact the case; the electronics were in the way so I couldn't get a really good look at things. If it is, hot gluing any edges won't do any good.
My 553 rear glass cracked out of the blue and it just recently had the front lense shot out so it might get torn apart here soon.
