May 20, 2018, 04:08:30 PM

Author Topic: The Coming EF-M Prime to be 50mm Equivalent for APS-C EOS M [CR2]  (Read 17651 times)

neuroanatomist

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Re: The Coming EF-M Prime to be 50mm Equivalent for APS-C EOS M [CR2]
« Reply #30 on: January 31, 2018, 08:12:28 PM »
Might we get a metal barrel?

Have you not used or held a current EF-M lens?
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Re: The Coming EF-M Prime to be 50mm Equivalent for APS-C EOS M [CR2]
« Reply #30 on: January 31, 2018, 08:12:28 PM »

brad-man

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Re: The Coming EF-M Prime to be 50mm Equivalent for APS-C EOS M [CR2]
« Reply #31 on: January 31, 2018, 08:33:32 PM »
My mind's eye pictures it looking much like the 11-22 without a zoom ring. The burning question is plastic or metal mount? Bring on the popcorn.

dcm

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Re: The Coming EF-M Prime to be 50mm Equivalent for APS-C EOS M [CR2]
« Reply #32 on: January 31, 2018, 09:07:24 PM »
My mind's eye pictures it looking much like the 11-22 without a zoom ring. The burning question is plastic or metal mount? Bring on the popcorn.

... or the telescoping front element.  Plastic mount if it isn't a mini pickle jar which I don't expect.

28 IS macro is slightly shorter than the 11-22 and about twice the size of the 22, but appears to have the largest entrance pupil, around 25mm. Not much room to go larger given the mount and electronics. The other lenses seems to be about 20mm entrance pupil, including the Samyang 8mm FE. 

I mostly use the 22 in low light situations so another full stop would be great.  And more appropriate for the type of low light photos I shoot.   With a 25mm entrance pupil, a 33/1.4 is possible.  It will be interesting to see the size/aperture/price tradeoff they choose to make. 
« Last Edit: January 31, 2018, 09:27:39 PM by dcm »
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Woody

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Re: The Coming EF-M Prime to be 50mm Equivalent for APS-C EOS M [CR2]
« Reply #33 on: January 31, 2018, 09:17:09 PM »
Careful what you wish for.  That design seems to test like the EF 50 f/1.4 -- decent in the center, troublesome on the fringes and you really need to stop it down to make it shine.

It is interesting that Canon EF 50 f/1.2L (590g, US$1349) which costs a lot more than the f/1.4 version has worse off performance than the latter:
http://www.photozone.de/canon_eos_ff/472-canon_50_12_5d?start=1

The el cheapo EF 50 f/1.8 STM beats them both:
http://www.photozone.de/canon_eos_ff/905-canon_50_18stm?start=1

In comparison, Nikon AF-S 50 f/1.4 G lens weighs (280g, US$460) slightly less than the Canon equivalent (290g, US$349), but has superlative performance:
http://www.photozone.de/nikon_ff/441-nikkor_afs_50_14_ff?start=1

Conclusion?

Sometimes, it's possible to design a light weight (and relatively cheap) lens that has great optical performance.
« Last Edit: January 31, 2018, 09:36:39 PM by Woody »

brad-man

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Re: The Coming EF-M Prime to be 50mm Equivalent for APS-C EOS M [CR2]
« Reply #34 on: January 31, 2018, 09:32:13 PM »
My mind's eye pictures it looking much like the 11-22 without a zoom ring. The burning question is plastic or metal mount? Bring on the popcorn.

... or the telescoping front element.  Plastic mount if it isn't a mini pickle jar.

28 IS macro is slightly shorter than the 11-22 and about twice the size of the 22, but appears to have the largest entrance pupil, around 25mm. Not much room to go larger given the mount and electronics. The other lenses seems to be about 20mm entrance pupil, including the Samyang 8mm FE. 

I mostly use the 22 in low light situations so another full stop would be great.  And more appropriate for the type of low light photos I shoot.   With a 25mm entrance pupil, a 33/1.4 is possible.  It will be interesting to see the size/aperture/price tradeoff they choose to make.

"We know for sure that it’s not a 30mm lens and that it’ll be faster than f/2." This insures that I will be picking up one of these. I hope & expect that it will have IS, but I want one either way. These poor little crop sensors need all the light they can get :) It will be interesting to see whether it performs like a nifty fifty or a 35 IS. I'm hoping for the latter, but, again, I'll get one either way.


eosuser1234

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Re: The Coming EF-M Prime to be 50mm Equivalent for APS-C EOS M [CR2]
« Reply #35 on: January 31, 2018, 10:15:46 PM »
I would not be suprised if this projects an image large enough so it could be used on a FF EF-M mount camera.  That way you get a 50mm equivelent when used on APS-C, and the same lense can be the 35mm on Full Frame Ef-M mount.
Kill two birds with one stone in terms of their lens line up.
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woodman411

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Re: The Coming EF-M Prime to be 50mm Equivalent for APS-C EOS M [CR2]
« Reply #36 on: January 31, 2018, 10:33:47 PM »
Careful what you wish for.  That design seems to test like the EF 50 f/1.4 -- decent in the center, troublesome on the fringes and you really need to stop it down to make it shine.

It is interesting that Canon EF 50 f/1.2L (590g, US$1349) which costs a lot more than the f/1.4 version has worse off performance than the latter:
http://www.photozone.de/canon_eos_ff/472-canon_50_12_5d?start=1

The el cheapo EF 50 f/1.8 STM beats them both:
http://www.photozone.de/canon_eos_ff/905-canon_50_18stm?start=1

In comparison, Nikon AF-S 50 f/1.4 G lens weighs (280g, US$460) slightly less than the Canon equivalent (290g, US$349), but has superlative performance:
http://www.photozone.de/nikon_ff/441-nikkor_afs_50_14_ff?start=1

Conclusion?

Sometimes, it's possible to design a light weight (and relatively cheap) lens that has great optical performance.

You picked the worst L lens to make your point :) Even then, I would still pick the 50L for people, even if it doesn't have the sharpness. If you shoot people, I have not experienced one small prime that I liked, no matter what the internet specs and numbers say. For me it's all about rendering and micro-contrast and skin color and 3d effect, things that aren't technically measured but visibly seen and felt (for those that say there is no such thing as 3d effect, an extreme example of this can be seen in this comparison between an iPhone and a Canon M100: https://www.dpreview.com/articles/1321817752/iphone-x-portrait-mode-versus-ilc-dslr-camera . The fact is, the smaller the lens, the flatter the image, at least for close 3d objects like people's heads.)

If you shoot landscapes, the online reviews are more relevant, since their technical testings are against flat surfaces and focus on resolution/sharpness/etc, things that are not as important for portraits.

Anyway, it seems high end primes are going the other direction, they're getting bigger and more expensive, like Sigma's ART line and Canon's 85 1.4 IS. I wouldn't mind a non-pancake design with IS and consequently larger size, I couldn't stand how people's faces rendered with the efm 22 pancake (yes, I know 22 is wide for portraits, and yes, I actually like taking portraits with 22 (35 equiv)).
« Last Edit: January 31, 2018, 10:39:11 PM by woodman411 »

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Re: The Coming EF-M Prime to be 50mm Equivalent for APS-C EOS M [CR2]
« Reply #36 on: January 31, 2018, 10:33:47 PM »

HaroldC3

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Re: The Coming EF-M Prime to be 50mm Equivalent for APS-C EOS M [CR2]
« Reply #37 on: January 31, 2018, 11:37:40 PM »
Meanwhile, Sony will have announced at least 2 more bodies before September.  Wake me up when Canon actually releases an EF-M lens.

ahsanford

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Re: The Coming EF-M Prime to be 50mm Equivalent for APS-C EOS M [CR2]
« Reply #38 on: January 31, 2018, 11:55:34 PM »
Might we get a metal barrel?

Have you not used or held a current EF-M lens?

Only the 22mm pancake with the original EOS M body years ago.  Presumed all of these (other than the mount feature) were plastic -- not true?

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Don Haines

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Re: The Coming EF-M Prime to be 50mm Equivalent for APS-C EOS M [CR2]
« Reply #39 on: February 01, 2018, 12:14:18 AM »
Careful what you wish for.  That design seems to test like the EF 50 f/1.4 -- decent in the center, troublesome on the fringes and you really need to stop it down to make it shine.

It is interesting that Canon EF 50 f/1.2L (590g, US$1349) which costs a lot more than the f/1.4 version has worse off performance than the latter:
http://www.photozone.de/canon_eos_ff/472-canon_50_12_5d?start=1

The el cheapo EF 50 f/1.8 STM beats them both:
http://www.photozone.de/canon_eos_ff/905-canon_50_18stm?start=1

In comparison, Nikon AF-S 50 f/1.4 G lens weighs (280g, US$460) slightly less than the Canon equivalent (290g, US$349), but has superlative performance:
http://www.photozone.de/nikon_ff/441-nikkor_afs_50_14_ff?start=1

Conclusion?

Sometimes, it's possible to design a light weight (and relatively cheap) lens that has great optical performance.
yes, but the 50F1.8 is famous for its inconsistent AF.....
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neuroanatomist

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Re: The Coming EF-M Prime to be 50mm Equivalent for APS-C EOS M [CR2]
« Reply #40 on: February 01, 2018, 12:47:54 AM »
Might we get a metal barrel?

Have you not used or held a current EF-M lens?

Only the 22mm pancake with the original EOS M body years ago.  Presumed all of these (other than the mount feature) were plastic -- not true?

The main/outer barrels of the first three lenses – M18-55, M22/2 and M11-22 – are metal (anodized aluminum; the inner/extending barrels are plastic), and the mounts are metal, too.  The four newer lenses all have plastic barrels and mounts.  Given that, I'd expect this new lens to be plastic, as well.
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Maximilian

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Re: The Coming EF-M Prime to be 50mm Equivalent for APS-C EOS M [CR2]
« Reply #41 on: February 01, 2018, 01:55:05 AM »
... the first non-macro prime we've seen in EF-M since... the original 22mm pancake?  Glad to see!
Yeah!

Slowly - but only very, very slowly - the EOS M system becomes interesting to me.
Maybe, when we see another prime - say EF-M 50mm/f2.0 IS ...
It'll come surely before another EF 50/whatever USM.
Don't you think so, ahsanford?
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Ah-Keong

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Re: The Coming EF-M Prime to be 50mm Equivalent for APS-C EOS M [CR2]
« Reply #42 on: February 01, 2018, 03:32:02 AM »
Can I ask for a EF 50mm f/1,4L IS USM? and adapt it.   :P
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Re: The Coming EF-M Prime to be 50mm Equivalent for APS-C EOS M [CR2]
« Reply #42 on: February 01, 2018, 03:32:02 AM »

Talys

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Re: The Coming EF-M Prime to be 50mm Equivalent for APS-C EOS M [CR2]
« Reply #43 on: February 01, 2018, 03:37:27 AM »
Can I ask for a EF 50mm f/1,4L IS USM? and adapt it.   :P

You can certainly ask :D

olympus593

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Re: The Coming EF-M Prime to be 50mm Equivalent for APS-C EOS M [CR2]
« Reply #44 on: February 01, 2018, 07:26:40 AM »
It's a known fact that full frame mirrorless doesn't result in real weight or size reduction. But with APS-C, it's a different game, as shown by Fuji.
I believe that in a few years the majority of Canon cameras with APS-C sensors will mirrorless, and that in 5 years from now the only APS-C DSLR will be 7D3 or 7D4.

yes, but the 50F1.8 is famous for its inconsistent AF.....

He mentioned 1.8 STM, the new one, not the 50 1.8 II shifty-fifty:P

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Re: The Coming EF-M Prime to be 50mm Equivalent for APS-C EOS M [CR2]
« Reply #44 on: February 01, 2018, 07:26:40 AM »