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Author Topic: Still need a fast lens?  (Read 7748 times)

Edwin Herdman

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Re: Still need a fast lens?
« Reply #15 on: March 10, 2012, 12:12:25 PM »
True, that as ridiculously high ISO's are usable in the advanced DSLR world, the necessity of a fast lens for decent images in low light situations  - as we used to have in the film days and older digital days - is less.
With the exception of the 50mm f/1.4 prime, the actual supply of fast lenses seems better than in the film era.  And if you go back to the 1970s and earlier the zoom lenses tended to be slow by today's standards.

It is interesting though that "noisy" ISO settings, that everybody complains about on forums, are probably still better than using many films (although I have seen pretty good results from some newer color films being pushed in processing), certainly better than many of the classic cheaper films.

I think that, indoors, a f/2.8 or even f/2 lens is the minimum for shooting fast action (interestingly, f/2 might be the current "limit" for usefulness of a lens, though we'll have to see how the 5D III and the 1D X, as well as the T4i and other APS-C cameras, treat wider apertures).

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Re: Still need a fast lens?
« Reply #15 on: March 10, 2012, 12:12:25 PM »

katwil

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Re: Still need a fast lens?
« Reply #16 on: March 11, 2012, 04:47:04 PM »
Five years ago I needed a fast lens to get a decent shot with available light in some situations on my 20D.  Now with my 5D II, f/2.8 or lower gives me more room for creativity with DOF.  That won’t change with the 5D III.  No matter how good the body is, there are simply some things that can’t be done with a slow lens.

heheapa

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Re: Still need a fast lens?
« Reply #17 on: March 12, 2012, 05:03:15 AM »
Yes. I just experienced last Saturday that required ISO6400, F1.4, 1/40s with my 5D markii + 35L for candle blowing moment in a birthday event. If I have a usable ISO25600, it will give me 1/160s and more steady shots.

heheapa

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Re: Still need a fast lens?
« Reply #18 on: March 12, 2012, 05:08:56 AM »
Professionals goes to fast lens are usually for the DOF and the Faster AF at low light, not just purely for faster shutter speed.

briansquibb

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Re: Still need a fast lens?
« Reply #19 on: March 12, 2012, 12:22:18 PM »
Professionals goes to fast lens are usually for the DOF and the Faster AF at low light, not just purely for faster shutter speed.

... and lower iso for better IQ

MaGiL

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Re: Still need a fast lens?
« Reply #20 on: March 12, 2012, 04:52:57 PM »
Considering what I shoot, i will keep my fast primes and continue to invest in them. Personally, regardless if a f/4 functions as well as an f/2.8, I will always still go after the 1.2s and 1.4s  8)

+1

1.2/1.4 is not only about the correct exposure...it's also about creativity 8)

Dylan777

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Re: Still need a fast lens?
« Reply #21 on: March 12, 2012, 05:15:37 PM »
Considering what I shoot, i will keep my fast primes and continue to invest in them. Personally, regardless if a f/4 functions as well as an f/2.8, I will always still go after the 1.2s and 1.4s  8)

Yeap...same here. I'm thinking upgrade my 50mm f1.4 to f1.2. Can't wait to see how my 5D III will work with my f1.4   LOVE THE RED RING
Bodies: 1DX -- 5D III
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Re: Still need a fast lens?
« Reply #21 on: March 12, 2012, 05:15:37 PM »

pz-photography

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Re: Still need a fast lens?
« Reply #22 on: March 12, 2012, 06:33:33 PM »
Even with the great ISO performance of the 5D III, you can't get decent bokeh out of somthing like a 24-105 f4. Since I'm in love with the bokeh of the fast Canon L lenses I'll definitely keep all of them (which would be the 35 1.4, 50 1.2, 85 1.2 II and 100 2.8, which also has a greeeeeeat bokeh ;) ) The nice thing with this fast lenses is that you can isolate your subject even if its a little bit further away.
5D Mark III | 7D | 1V HS | 14 2.8L II | 35 1.4L | 50 1.2L| 85 1.2L II | 100 2.8L IS | 24-105 4.0L IS| 70-200 2.8L IS II | EF 2x III

thepancakeman

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Re: Still need a fast lens?
« Reply #23 on: March 12, 2012, 07:12:21 PM »
Even with the great ISO performance of the 5D III, you can't get decent bokeh out of somthing like a 24-105 f4.

I agree--my wife loves her 24-105 f/4, but I almost never use it because I'm addicted to that dreamy background blur that comes from faster lenses.

briansquibb

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Re: Still need a fast lens?
« Reply #24 on: March 12, 2012, 07:24:30 PM »
Even with the great ISO performance of the 5D III, you can't get decent bokeh out of somthing like a 24-105 f4.

I agree--my wife loves her 24-105 f/4, but I almost never use it because I'm addicted to that dreamy background blur that comes from faster lenses.

The bg blur improves the closer you get to the subject in fact there are a lot of occasions when faster than f/4 for a head shot would result in the far eye being oof

Daniel Flather

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Re: Still need a fast lens?
« Reply #25 on: March 12, 2012, 10:20:44 PM »
F2.8 is fast?
| 5D3 | 8-15L | 24L II | 35L | 50L | 85L II | 100/2.8 | 200/2L | EOS M | 22 STM |

briansquibb

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Re: Still need a fast lens?
« Reply #26 on: March 13, 2012, 02:46:49 AM »
F2.8 is fast?

About as fast as you can go without really having to worry about how the shallow DOF will impact the image. Also the point where the AF starts to work for you at its best.

I suspect that is why the recent wa were f/2.8.

Seamus

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Re: Still need a fast lens?
« Reply #27 on: March 13, 2012, 03:26:44 AM »
One thing that appears to have been mostly overlooked is the different look/feel/color intepretation and bokeh of the faster primes.  To me, there is much more of an advantage than just "speed."  Combine them with the 5D Mark III and I am hoping to really be able to unleash the beast with my primes thanks to the new focusing system.

+1

I agree, I'm looking forward to the new focusing system and my 50 f1.2L. The fastest primes have much more to offer than just "speed", the look/feel/color and bokeh are most important to me. Of course the low light capabilities are great too...

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Re: Still need a fast lens?
« Reply #27 on: March 13, 2012, 03:26:44 AM »

Enthusiast

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Re: Still need a fast lens?
« Reply #28 on: March 14, 2012, 04:05:38 PM »
Before we  discuss how fast the lenses needs to be, we need to discuss what you want to do?
My kids are to fast for a slow 2.8 lens! My wife is joking about my "mans handbag" but she likes the pics from my 50mm 1.4 and 85mm 1.4 Sigmas on my old 40D. The 5d M3 is preordered the crop is even not blury enough and I want FF just for that. If you shoot dinosaurs in the museum than f=8 is enough!You will get the bones in the back razor sharp.   8)
S95, 40D, 5D MIII, EOS 3, Rolleiflex 3.5F - Tamron 17-50 2.8, Sigma: 15 2.8 Fisheye, 28 1.8, 50 1.4, 85 1.4, 105 2.8 macro, 70-200 2.8, Lensbaby Composer

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Re: Still need a fast lens?
« Reply #28 on: March 14, 2012, 04:05:38 PM »