loaning a 50mm to a friend

loaning a 50mm to a friend

11 posts
1 March 2014
alexcrawford
Photographer
alexcrawford
ive promised the loan of a 50mm lens to a friend.
she knows she gets the less-sharp of the
1.4 or 1.8 canon 50mm lenses.

which one does she get,
which do i keep?

thanks


Posted 1 March 2014
Andy_B
Photographer
Andy_B
So you're asking us which of the two lenses you own is the sharper?

Posted 1 March 2014
profilepictures
Photographer
profilepictures
Both are weak as kittens, one drops in half, is pretty sharp and wonderfully inexpensive - the other is priced like a real lens, pretty sharp but a knock in the front element will cost £120 minimum to fix.

I'm really, really not a fan of either, but at least the 1.8 is easy to replace rather than fall out with a friend. If its a good friend, you should advise a Sigma 50 or 30 ex f1.4 (full or crop dependent)

Posted 1 March 2014
jpv
Photographer
jpv
Only you can answer your question, and do it by making some tests.

There is no way for anyone else to "know" the condition each one is in, is it a good or bad "copy" has it been knocked, dropped or scratched? Does it have fungus? For instance the design of the 1.4 is particularly sensitive to "knocks" as the internal focussing rack can become "bent".

If both were "good copies" in as new condition the 1.4 would just shade it according to reviews, but the answer is still you must test your copies.

Posted 1 March 2014
stolenfaces
Photographer
stolenfaces
If you can't tell the difference it hardly matters...

Cue usual thread about sigma being better and the slightly less common, but more relevant, discussion of what f stop either of you are planning to use.

Posted 1 March 2014
alexcrawford
Photographer
alexcrawford
jpv
For instance the design of the 1.4 is particularly sensitive to "knocks" as the internal focussing rack can become "bent". If both were "good copies" in as new condition the 1.4 would just shade it according to reviews, but the answer is still you must test your copies.
no time for tests. should have wrote decision to be made NOW (5pm). she gets the 1.8 as if i bugger-up the 1.4's steering rack by bumping on kerb i can live with myself. thanks to others for great comments etc x
Posted 1 March 2014
OldMaster
Photographer
OldMaster
And its aperture relevant..fast lenses are optimised to perform their best wide or near wide open. There's a good chance the f1.8 is as good as if not better when stopped down. The more expensive may have the preferred "bokeh" as that is determined usually by the number of aperture leaves and how "circular" they are when stopped down. But actually it doesn't matter anymore and I doubt anyone could tell the difference anyway except under the most stringent conditions..same camera, same sensor, same ability to hold the camera still, same selection of focus point..oh, what the hell, you've decided anyway
Posted 1 March 2014
alexcrawford
Photographer
alexcrawford
OldMaster
oh, what the hell, you've decided anyway
made me grin. time restrictions caused the plea for help. my lovely friend got the 1.8 as the loaner. dunno if i did right; reads like a 50/50 guess
Posted 1 March 2014
alexcrawford
Photographer
alexcrawford
stolenfaces
discussion of what f stop either of you are planning to use.
me f6.7 her f8 LOL
Posted 1 March 2014
alexcrawford
Photographer
alexcrawford
oh, the 1.8 is the mk1
slightly more durable!


Posted 1 March 2014
Bill_M
Photographer
Bill_M
You should lend the cheaper, it's the easier to replace. I have both, and both are very sharp from f2 upwards, but the f1.4 is not much use below that. The 1.4 treats out of focus highlights much better, but has a colour cast compared to most Canon lenses, correctable but a nuisance. I treat my lenses carefully, so have had no trouble with the proverbial weakness from either.

Posted 2 March 2014
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