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loaning a 50mm to a friend

alex crawford is off-lineSilver Member
01 March 2014 09:27
alexcrawford
Photographer
alexcrawford
Location
United Kingdom
Essex
Chelmsford

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


Andy_B is onlineSilver Member
01 March 2014 09:53
Andy_B
Photographer
Andy_B
Location
United Kingdom
London
London

So you're asking us which of the two lenses you own is the sharper?


Profile Pictures is off-line
01 March 2014 10:40
profilepictures
Photographer
profilepictures
Location
United Kingdom
Suffolk
Bury St Edmunds

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)


Paul Venn is off-lineSilver Member
01 March 2014 10:40
jpv
Photographer
jpv
Location
United Kingdom
Norfolk
Norwich

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.


Neil Anderson is off-line
01 March 2014 10:43
stolenfaces
Photographer
stolenfaces
Location
United Kingdom
London
West London

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.
Like any dealer he was watching for the card that is so high and wild he'll never need to deal another...


alex crawford is off-lineSilver Member
01 March 2014 11:47
alexcrawford
Photographer
alexcrawford
Location
United Kingdom
Essex
Chelmsford

Quote from 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




OldMaster is off-line
01 March 2014 13:36
OldMaster
Photographer
OldMaster
Location
United Kingdom
Hertfordshire
Harpenden

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


alex crawford is off-lineSilver Member
01 March 2014 14:53
alexcrawford
Photographer
alexcrawford
Location
United Kingdom
Essex
Chelmsford

Quote from 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 :-)


alex crawford is off-lineSilver Member
01 March 2014 15:01
alexcrawford
Photographer
alexcrawford
Location
United Kingdom
Essex
Chelmsford

Quote from stolenfaces
discussion of what f stop either of you are planning to use.



me f6.7
her f8
LOL


alex crawford is off-lineSilver Member
01 March 2014 15:02
alexcrawford
Photographer
alexcrawford
Location
United Kingdom
Essex
Chelmsford

oh, the 1.8 is the mk1
slightly more durable!



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