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FORUMS Canon Cameras, Lenses & Accessories Canon EF and EF-S Lenses 
Thread started 25 Jul 2014 (Friday) 09:27
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Protect fish eye lens?, chicken close-ups

 
snake0ape
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Jul 26, 2014 19:12 |  #31

Choderboy wrote in post #17058016 (external link)
And many of us learn something as a result.
Win win.

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ZoneV
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Jul 27, 2014 00:44 |  #32

KirkS518 wrote in post #17056551 (external link)
Having used the Rokinon 8mm FE for almost the exact same thing, I can tell you with the utmost certainty that your lens will be fine.
...

Modern lenses are very hard, yes. This is something I write often, they are not easy to scratch, see my lens-scratch-video (external link).

But as soon as a chicken has quarz sand on its pecker you may get scratches on your lens - it is likely harder than the coating. And chicken often have a sand-bath.


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runninmann
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Jul 27, 2014 03:54 |  #33

ZoneV wrote in post #17058519 (external link)
Modern lenses are very hard, yes. This is something I write often, they are not easy to scratch, see my lens-scratch-video (external link).

But as soon as a chicken has quarz sand on its pecker you may get scratches on your lens - it is likely harder than the coating. And chicken often have a sand-bath.

Yes, sand on your pecker is never a good thing!


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Reservoir ­ Dog
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Jul 28, 2014 02:53 |  #34

May be try something with a piece of glass and attach it in front of the lens with duck-tape
careful that the glass do not touch the front element by putting some soft tissues all around the front element (just an example)! even the flat side of the glass can scratch the lens.

For every-bodies who said "add a filter in front", if the OP have the same FE than me, and if the OP ask this question it's because we cannot put filter in front, the gel filter goes at the back of the lens ;)


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Bill ­ Emmett
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Oct 13, 2014 13:21 |  #35

You could alway hold a piece of glass in front of the lens while you shoot. Let the glass take the licking.
I just bought a fish eye, it is a fun lens. Good Luck
B


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lovemyram4x4
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Oct 14, 2014 12:26 |  #36

I wouldn't be worried about the chicken's beak but something else that might on it like as ZoneV mentioned sand or anything else that could potentially be on it and be abrasive enough to scratch the coatings.

As for a sheet of glass, I'm not sure what the AOV is on the OP's lens but it definitely wouldn't work on my 8-15 even at 15mm it has 180° AOV in corners. I think if I was to do something similar to what the OP wants I'd buy some cheap acrylic domes (external link)(I might even risk using one of my acrylic dome ports since you can remove minor scratches from acrylic plus scratches don't show up when underwater-it would kill re-sale value so maybe not).




  
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elitejp
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Oct 15, 2014 03:14 |  #37

snake0ape wrote in post #17056764 (external link)
chickens pecking may not be enough force to scratch a lens, but do be aware that even the faintest of scratch on the lens will show up on your photos. A fisheye lens with dust, fingerprints , scratch marks will show up on the photos, especially when you are shooting at f8 or smaller.
And if you will be using the canon 8-15, also be aware that replacing the front element will cost you $900 in repair cost.

I read one post where the guy taped a piece of paper on the lens to see if it would cause concern. I think there was a filter vs no filter debate going on and the outcome was you couldnt even tell the paper was stuck to the lens much less a scratch on the front element. Maybe fish eyes are different,but the proof was in the pictures.


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snake0ape
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Oct 15, 2014 08:56 |  #38

elitejp wrote in post #17213660 (external link)
I read one post where the guy taped a piece of paper on the lens to see if it would cause concern. I think there was a filter vs no filter debate going on and the outcome was you couldnt even tell the paper was stuck to the lens much less a scratch on the front element. Maybe fish eyes are different,but the proof was in the pictures.

Scratches can be seen on fish eyes if you shoot at f8 or smaller.


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gonzogolf
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Oct 15, 2014 09:28 |  #39

I grew up on a chicken farm and worked in nearly every aspect of the poultry industry from egg to nugget and I csn assure you a chicken peck wont crack or scratch your glass,




  
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Protect fish eye lens?, chicken close-ups
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