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Author Topic: Patent: Canon EF 50 f/1.8 IS  (Read 22784 times)

photonius

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Re: Patent: Canon EF 50 f/1.8 IS
« Reply #30 on: July 24, 2013, 05:54:46 AM »
IS on a 50mm? Why?

Because it'll let you shoot static scenes down to probably 1/13 or so. Two stops of extra exposure is a huge deal in low-light situations.

I was in the middle of writing how 1/15 is too slow for shooting people (unless they're exceptional at holding still) when I noticed you said "statics scenes". That begs the question: are people so lazy as to pay an extra ~$700 for IS (over the current f/1.8 ) simply to avoid having to bring/carry a tripod when they do night photography?



I guess you have never travelled (no tripod) and wanted to take a picture inside, e.g., a dark church, ....

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Re: Patent: Canon EF 50 f/1.8 IS
« Reply #30 on: July 24, 2013, 05:54:46 AM »

dilbert

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Re: Patent: Canon EF 50 f/1.8 IS
« Reply #31 on: July 24, 2013, 06:49:01 AM »
Why IS?

Back in the days of film, the general rule was 1/mm is the minimum speed for the shutter when shooting hand held. This survived into the realm of DSLRs until...

Until sensor resolution screamed past that of film and you now needed 1/(2*mm) - or faster - to get a sharp picture.

IS combats that. How?

Imagine that I've got a 50mm lens and my DSLR's sensor has so many pixels that I need to shoot 1/100 in order to get a sharp picture (no visible blurring from body influenced motion.) A 1 stop IS mechanism brings the minimum speed back to 1/50. A 2 stop IS mechanism brings it down to 1/25. A 3 stop IS mechanism brings it down to 1/13. The IS mechanism also allows me to use a lower ISO, delivering better IQ - if my shot would be 1/50 at ISO 400 but my DSLR means that for my 50mm I need to shoot at 1/100 then I need to double the ISO to 800.

On a human front, IS allows people that cannot hold things steady to take non-blurry photographs. That's not a bad thing.

BozillaNZ

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Re: Patent: Canon EF 50 f/1.8 IS
« Reply #32 on: July 24, 2013, 08:01:51 AM »
But for this sort of focal length, if I have to choose between f2 IS and f1.4, I will take the f1.4 any time of the day. (not when I was drunk and shaky  :P)
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Hobby Shooter

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Re: Patent: Canon EF 50 f/1.8 IS
« Reply #33 on: July 24, 2013, 08:02:17 AM »
Why IS?

On a human front, IS allows people that cannot hold things steady to take non-blurry photographs. That's not a bad thing.
That's what makes IS so important for me, my hands are not very steady unless I really focus on it.

TW

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Re: Patent: Canon EF 50 f/1.8 IS
« Reply #34 on: July 24, 2013, 08:03:41 AM »
The current Canon 50mm 1.4 is unusable wide open in most situations anyway, just no contrast at all. Everything has a soupy, misty look. Also quite a bit of CA, though that's not such an issue anymore.

If a 50mm 1.8 IS is sharp and contrasty wide open, and has IS to boot, this will be a fine lens; modern USM and the build quality will put such a lens in a whole different category than its predecessor.

Of course, Canon, realizing this, will charge accordingly.  ;D
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asposium

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Re: Patent: Canon EF 50 f/1.8 IS
« Reply #35 on: July 24, 2013, 08:18:48 AM »
hoping for a 85 f2 IS to be next in line.

I'd like an 85L f1.2 IS

my 85L mark 2 would be straight onto ebay!

dstppy

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Re: Patent: Canon EF 50 f/1.8 IS
« Reply #36 on: July 24, 2013, 08:55:33 AM »
IS on a 50mm? Why?

Because it'll let you shoot static scenes down to probably 1/13 or so. Two stops of extra exposure is a huge deal in low-light situations.

I was in the middle of writing how 1/15 is too slow for shooting people (unless they're exceptional at holding still) when I noticed you said "statics scenes". That begs the question: are people so lazy as to pay an extra ~$700 for IS (over the current f/1.8 ) simply to avoid having to bring/carry a tripod when they do night photography?

IS is always nice, but in this case I can't see it being worth what Canon is likely to charge for this lens. I'm honestly confused by this lens. For photographers, it's appeal is extremely limited to me. It probably has the biggest appeal to people doing video.

Tripods are like flashes, any use of them in photography is 100% cheating.

OR, or, let me just throw this out there:
Maybe some people don't shoot with them for whatever reason and calling them lazy is as inane as calling using them cheating ;)
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Re: Patent: Canon EF 50 f/1.8 IS
« Reply #36 on: July 24, 2013, 08:55:33 AM »

Viggo

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Re: Patent: Canon EF 50 f/1.8 IS
« Reply #37 on: July 24, 2013, 09:13:17 AM »
IS on a 50mm? Why?

Because it'll let you shoot static scenes down to probably 1/13 or so. Two stops of extra exposure is a huge deal in low-light situations.

I was in the middle of writing how 1/15 is too slow for shooting people (unless they're exceptional at holding still) when I noticed you said "statics scenes". That begs the question: are people so lazy as to pay an extra ~$700 for IS (over the current f/1.8 ) simply to avoid having to bring/carry a tripod when they do night photography?

IS is always nice, but in this case I can't see it being worth what Canon is likely to charge for this lens. I'm honestly confused by this lens. For photographers, it's appeal is extremely limited to me. It probably has the biggest appeal to people doing video.

Tripods are like flashes, any use of them in photography is 100% cheating.

OR, or, let me just throw this out there:
Maybe some people don't shoot with them for whatever reason and calling them lazy is as inane as calling using them cheating ;)

+1 I hate dragging around a tripod (don't even have one anymore). It's always in the way. IS is fantastic in everywhich way and should, imo, be included in ALL lenses. the 14mm with 4 stops if IS? yes please. Will also help a lot with my handheld HDR. Not to mention video.
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Dylan777

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Re: Patent: Canon EF 50 f/1.8 IS
« Reply #38 on: July 24, 2013, 09:46:21 AM »
IS on a 50mm? Why?

Because it'll let you shoot static scenes down to probably 1/13 or so. Two stops of extra exposure is a huge deal in low-light situations.

The reason buying prime is big aperture & shallow DOF. Can't shoot people @ 1/13 or so. Wonder who do landscape @ f1.8? If the lens is on tripod, then why IS?
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CANONisOK

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Re: Patent: Canon EF 50 f/1.8 IS
« Reply #39 on: July 24, 2013, 09:51:39 AM »
Oh good, a "nifty-850."
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bradfordswood

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Re: Patent: Canon EF 50 f/1.8 IS
« Reply #40 on: July 24, 2013, 09:56:54 AM »
Lots of good points here, as usual, on both sides of the argument.  For me, IS is always welcome.  My hands are not steady all the time especially at shutter speeds slower than about 1/60.  So for that reason alone I love having IS on my lenses.  Do I always need it?  Well no, not if I'm shooting in good light...but how often does that really happen?  Image stabilization helps me take sharper pictures which makes me happy.

If this is as sharp as the 35mm IS then I'm in for one.  But of course, once the price drops.   :P

insanitybeard

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Re: Patent: Canon EF 50 f/1.8 IS
« Reply #41 on: July 24, 2013, 10:02:51 AM »
The reason buying prime is big aperture & shallow DOF. Can't shoot people @ 1/13 or so. Wonder who do landscape @ f1.8? If the lens is on tripod, then why IS?

How about light weight and compact size? No, I wouldn't do landscapes at 1.8, but IS gives me the option to shoot in lower light, maybe at a lower ISO or at a smaller aperture for DOF. Carrying a tripod isn't always practical or possible when hiking etc.
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paul13walnut5

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Re: Patent: Canon EF 50 f/1.8 IS
« Reply #42 on: July 24, 2013, 10:27:03 AM »

IS is always nice, but in this case I can't see it being worth what Canon is likely to charge for this lens. I'm honestly confused by this lens. For photographers, it's appeal is extremely limited to me. It probably has the biggest appeal to people doing video.

Hmm, disagree.  Video has a couple of things going for it..

1. Minimum shutter of 1/30th.  More likely to be 1/50th or 1/60th for most users.  Largely negates the IS of a stills lens.  IS for video and IS for stills is quite different.  We don't know how aggressive or how reactive the IS will be.  On a better handycam format camera IS can be set in different modes, on traditional camcorders it isn't present at all.

2. In anycase most serious video users would have the camera supported in someway.  Anything over 30s becomes a pain to handhold.  Again, largely negating the benefit of IS for video users.

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Re: Patent: Canon EF 50 f/1.8 IS
« Reply #42 on: July 24, 2013, 10:27:03 AM »

Etienne

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Re: Patent: Canon EF 50 f/1.8 IS
« Reply #43 on: July 24, 2013, 10:51:45 AM »

IS is always nice, but in this case I can't see it being worth what Canon is likely to charge for this lens. I'm honestly confused by this lens. For photographers, it's appeal is extremely limited to me. It probably has the biggest appeal to people doing video.

Hmm, disagree.  Video has a couple of things going for it..

1. Minimum shutter of 1/30th.  More likely to be 1/50th or 1/60th for most users.  Largely negates the IS of a stills lens.  IS for video and IS for stills is quite different.  We don't know how aggressive or how reactive the IS will be.  On a better handycam format camera IS can be set in different modes, on traditional camcorders it isn't present at all.

2. In anycase most serious video users would have the camera supported in someway.  Anything over 30s becomes a pain to handhold.  Again, largely negating the benefit of IS for video users.

It seems you don't shoot video. Shooting at 1/30, 1/60 or 1/4000 does not improve eliminate shake in video, but IS cuts it down quite a bit.

Hand-held video is common even on big budget films today. Eliminating the micro-shakes improves the look quite a lot. The camera on a shoulder brace with a 50mm with IS is great on FF, and even more important on a crop.

mrzero

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Re: Patent: Canon EF 50 f/1.8 IS
« Reply #44 on: July 24, 2013, 10:57:54 AM »
I'm just wondering what will the final stable of 50mm lenses be.  I find it hard to believe that Canon will keep the 50 1.8, 50 1.4, 50 1.8 IS (or whatever), and the 50 1.2L.  Are they going to kill of the nifty fifty and treat the shorty forty as its "replacement," keep the 1.4 for budget wide aperture shooters, and treat the IS model as the non-L intermediate?  Now that so many DSLR shooters are on crop sensors, the 50mm length is more like an 80mm short telephoto to them, so the 40mm as entry-level prime lens makes more sense, although a 28mm entry-level prime would be the best.

Also, as to the chorus of "why IS," we've been through this before with the 24, 28, and 35.  Obviously they are going to do the same with the 50, and probably the 85.  The biggest question left is where they will stop.  They already have a 100mm IS macro L that people love, and non-L macro and non-macro 100s.  They killed off the 135 non-L soft focus, so that is a possibility, but the 135 L is widely beloved -- would they undercut it with an $800 wide aperture with IS?  Seems doubtful.  And the 200 L prime -- if they add  a non-L with IS, it would seem to undercut the widely beloved 70-200 zooms.  Canon has always been reticent to cannibalize their existing sellers (i.e. EOS M vs. micro 4/3).  However, as many point out repeatedly, the telephotos are the lengths that benefit most from IS. 

EDIT:  Oops, I forgot to include the 50mm 2.5 macro.  I have a hard time believing that they will continue with five 50mm primes (and a 40mm). 
« Last Edit: July 24, 2013, 03:08:45 PM by mrzero »
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Re: Patent: Canon EF 50 f/1.8 IS
« Reply #44 on: July 24, 2013, 10:57:54 AM »