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FORUMS News & Rumors Camera Rumors and Predictions 
Thread started 20 Jul 2012 (Friday) 02:25
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EOS M: M for Mirrorless

 
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lannes
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Jul 20, 2012 07:34 |  #16

looks like a repackaged GX-1 with an interchangeable lens mount.


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mikeinctown
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Jul 20, 2012 07:35 |  #17

mrkgoo wrote in post #14743423 (external link)
A camera with SLR-like sensor, and thus SLR-like image quality, SLR-like DOF, and selectable lenses... in a MUCH smaller form factor. No mirror housing or viewfinder. Sure you lose those features, but you gain superb portability.

The lenses apparently are the same size, so how is that "superb"? Also, can you imagine how cramped most people's fingers would be after holding something like that for a few hours? I was going to purchase a D3100 until I held it in my hand it it felt uncomfortable compared to the Canon. I cannot imagine how nasty this thing would feel




  
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msowsun
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Jul 20, 2012 07:42 |  #18

smythie wrote in post #14743683 (external link)
EF-S lenses have white dots too


No, EF-S lenses have a white square.


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msowsun
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Jul 20, 2012 08:12 |  #19

mikeinctown wrote in post #14743812 (external link)
The lenses apparently are the same size, so how is that "superb"? Also, can you imagine how cramped most people's fingers would be after holding something like that for a few hours? I was going to purchase a D3100 until I held it in my hand it it felt uncomfortable compared to the Canon. I cannot imagine how nasty this thing would feel

By my rough calculations the EF-M lens mount would be about 15% smaller than an EF or EF-S mount.

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IMAGE: http://i2.photobucket.com/albums/y17/msowsun/photo%20stuff/Photo9/002-1.jpg

IMAGE: http://i2.photobucket.com/albums/y17/msowsun/photo%20stuff/Photo9/002a-2.jpg

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phreeky
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Jul 20, 2012 08:21 |  #20

The style of those electrical contacts is a positive start.




  
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shinksma
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Jul 20, 2012 08:27 |  #21

Hmm, looking at the photos and filter size as listed on the 22mm EF-M lens:

The bare metal "ring" of the body mount appears to be roughly the same size as the filter ring on that 22mm EF-M lens, which says 43mm. So I will estimate the mount is also 43mm. If it's 40mm or 48mm it doesn't really change my overall assessment.

My T3i (and I assume all Canon DSLRs) has a lens mount that is approx 64mm across (again, measuring the bare metal "ring").

So a step-down adapter will certainly be needed, and will make any large lens that is attached look quite redonkulus (I like that word). Actually, it will look like the lens has some sort of small box attached to it.

Nonetheless, if it works, I'd be interested in picking up a body and adapter if they were affordable enough for those trips when you want to bring something more than a P&S but a FF or Rebel DSLR is just "too serious". Like Christmas office parties.

shinksma


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mrkgoo
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Jul 20, 2012 08:27 |  #22

Owain Glyndwr wrote in post #14743789 (external link)
how exactly do you envisage an optical viewfinder without mirrors?

mikeinctown wrote in post #14743812 (external link)
The lenses apparently are the same size, so how is that "superb"? Also, can you imagine how cramped most people's fingers would be after holding something like that for a few hours? I was going to purchase a D3100 until I held it in my hand it it felt uncomfortable compared to the Canon. I cannot imagine how nasty this thing would feel

I'm not sure this is designed to replace an slr entirely. It's an in-between. A compromise.

You're thinking too narrow. It's like why you have a bnch of different camera bags. They serve different purposes.

If you're shooting some event for hours, sure, you bring your dslr. You're spending a day at the beach? Ok take you point and shoot. Wait a weekend hiking trip? Mayb you want a compact mirrorless.

Of course, if yo don't envisage yourself in need of some thing like this, of course you won't need it. But somepeoPle will appreciate such a camera.

And with a small set of lenses, it can be way smaller than any slr.




  
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Jim_T
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Jul 20, 2012 08:30 |  #23

It would have been nice to see an optical viewfinder (like with rangefinder style cameras)..

When I have to shoot handheld using lower shutter speeds, I like to hold the camera tight against my cheek with my elbows pressed against my ribs. I don't like holding the camera out away from me peering at an LCD screen.

I guess they skipped the optical viewfinder to save on cost....




  
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msowsun
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Jul 20, 2012 08:32 |  #24

phreeky wrote in post #14743956 (external link)
The style of those electrical contacts is a positive start.

Yes, the number of contacts has changed....

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tgara
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Jul 20, 2012 08:34 |  #25

Jim_T wrote in post #14743987 (external link)
It would have been nice to see an optical viewfinder (like with rangefinder style cameras)..

When I have to shoot handheld using lower shutter speeds, I like to hold the camera tight against my cheek with my elbows pressed against my ribs. I don't like holding the camera out away from me peering at an LCD screen.

I guess they skipped the optical viewfinder to save on cost....

This remains to be seen. There may be an accessory viewfinder that can be inserted into the hotshoe. The Olympus PEN series has this.


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Keebert
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Jul 20, 2012 08:39 |  #26

Why did they call it EF-M if it's not a EF compatible lens mount? I guess since EF stands for Electro-Focus, the mount is exactly that with the focus motor in the lens.


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shinksma
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Jul 20, 2012 08:41 |  #27

shinksma wrote in post #14743973 (external link)
Hmm, looking at the photos and filter size as listed on the 22mm EF-M lens:

The bare metal "ring" of the body mount appears to be roughly the same size as the filter ring on that 22mm EF-M lens, which says 43mm. So I will estimate the mount is also 43mm. If it's 40mm or 48mm it doesn't really change my overall assessment.

Quoting myself so that my correction doesn't get overlooked: it appears from another image that the filter inserts in the inner barrel: I was assuming it was the outer barrel like most EF/EF-S lenses. See the image posted here:

https://photography-on-the.net …/showthread.php​?t=1208820

The diameter of the outer barrel is apparently 57mm. In which case, there will be some step-down, but not much.

One wonders whether a step-up adapter to use an EF-M lens on an EF-S body is practical/possible (since the new camera allegedly uses an APS-C sensor).

shinksma

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edge100
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Jul 20, 2012 08:41 |  #28

howiewu wrote in post #14743699 (external link)
Yeah, I don't get mirrorless either, the Rebels are small enough already.

But more power to those who want it.

It's all about the lenses. Look at the size difference between a Canon 35L and a Leica 35 Summilux or the XF 35 f/1.4 for the Fuji X-Pro1. The absence of a mirror means you can put the lens much closer to the sensor than you can on a DSLR, which means you can make the lenses much smaller.

The X-Pro1, for example, is not what I'd call a small body. But the total package of X-Pro1 and 35 f/1.4 is much smaller and more portable than an equivalent DSLR kit.


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edge100
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Jul 20, 2012 08:54 |  #29

Owain Glyndwr wrote in post #14743789 (external link)
how exactly do you envisage an optical viewfinder without mirrors?

You're being a bit pedantic about the word 'mirror', if I read you correctly. An optical viewfinder is clearly possible without a reflex mirror (as in all of the Leica M cameras since the M3, the X100, X-Pro1, etc). Clearly, though, some kind of mirror is required in all of these OVF systems.

But I think when people use the term 'mirrorless', it is taken to mean 'the absence of a reflex mirror'.


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howiewu
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Jul 20, 2012 09:10 |  #30

edge100 wrote in post #14744034 (external link)
It's all about the lenses. Look at the size difference between a Canon 35L and a Leica 35 Summilux or the XF 35 f/1.4 for the Fuji X-Pro1. The absence of a mirror means you can put the lens much closer to the sensor than you can on a DSLR, which means you can make the lenses much smaller.

The X-Pro1, for example, is not what I'd call a small body. But the total package of X-Pro1 and 35 f/1.4 is much smaller and more portable than an equivalent DSLR kit.

Yeah, but your mirrorless is most likely not FF, so the 35/1.4 is going to be equivalent to something like 50-60/1.4 on FF. My 50/1.4 is small enough.


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