Getting pi$$ed off at vignetting
Getting pi$$ed off at vignetting
Author
Discussion

stigmundfreud

Original Poster:

22,454 posts

240 months

Friday 20th June 2008
quotequote all
in the right place it can look really nice but the bloody 5d really suffers from it when using even the specific lens hoods or ultra thin filters mad

anyone recommend a way to prevent it from happening so much

AlfaFoxtrot

407 posts

228 months

Friday 20th June 2008
quotequote all
Only the usual, avoid wide angles and big apertures. Provided you take it a low enough ISO you can correct it in Lightroom or whatever with no ill effects.

stigmundfreud

Original Poster:

22,454 posts

240 months

Tuesday 1st July 2008
quotequote all
the thing is the lenses and the hoods are supposedly designed to avoid it. if you are just one mm off you get it big time, its enough for me to think I might go to a 1d next as the 1.3x should avoid it whilst still keeping fairly close to the actual focal ranges

AlfaFoxtrot

407 posts

228 months

Tuesday 1st July 2008
quotequote all
I get it at the wide end of my 18-55, but it's easily correctable in software so I'm not toooo fussed about it, but it is an annoyance. I thought the hoods were designed to minimise it as well *sigh*.

Simpo Two

92,945 posts

295 months

Tuesday 1st July 2008
quotequote all
I'd guess it's the lens design. If a lens is going to vignette then a hood isn't going to stop it. A hood can only reduce flare or increase vignetting.

stigmundfreud

Original Poster:

22,454 posts

240 months

Tuesday 1st July 2008
quotequote all
sorry its not so much the gradual fade out of light, do not mind that as tbh if I have noting in front of lens I get hardly any. But should I use something like a filter you get, sometimes, intrusion which is a perm vignette, nothing you can do in software to remove it. It just seems the 5d is very suseptible to filter position. If the filter holder is just a mm or two rotated it causes blockage which you cant really see in view finder.


eg (ignoring the issue with dust spots, now hopefully sorted!)



Edited by stigmundfreud on Tuesday 1st July 22:15

Simpo Two

92,945 posts

295 months

Tuesday 1st July 2008
quotequote all
Hmm, well if you really want to use filters how about the Cokin square system?




Blimey, that takes me back. 'Grad tobacco and a Star 4 please'... urgh. But cool at the time!

stigmundfreud

Original Poster:

22,454 posts

240 months

Tuesday 1st July 2008
quotequote all
hehe nowt wrong with grads!

It is a cokin, its even with the wide angle holder too! It just seems that despite he lens being round (obviously light still hits sensor in different ways) that if you have the filter on one way its ok (landscape) but go portrait and you get this fairly constnat. Of course the other constant is me.... brb just dusting off my star burst....

Simpo Two

92,945 posts

295 months

Tuesday 1st July 2008
quotequote all
OK, how about dumping the holder and holding the square filter manually against the lens front? If that doesn't work I give up!

stigmundfreud

Original Poster:

22,454 posts

240 months

Tuesday 1st July 2008
quotequote all
I had started to get to that point now anyway but the weight of the body + lens and balancing etc its a pain. I'd rather just complain on here if its all the same hehe

Famous Graham

26,553 posts

255 months

Tuesday 1st July 2008
quotequote all
Step backwards? biggrin

The 1D still suffers with a 10-20 but only at 10, btw.

350Wedge

2,364 posts

303 months

Tuesday 1st July 2008
quotequote all
All Canon Full frame camera's suffer from this with certain lenses. The only way to get round it is to use apertures greater than F13 as a rule. If you use apertures like F2.8, F5.6 etc it will be worse using certain lenses....

Interestingly the really fast lenses, i.e the f2.8 jobbies dont suffer on full frame (think 70-200F2.8, 300F2.8etc)

I used a 1DS MKII last year and it did it a lot using the 100-400L and 17-40L. These lenses are prone to it on full frame camera's.

I still use a MK1D which has been perfectly fine, no vignetting with that !!