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Canon 50/1.4 LTM worthy of consideration


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14 replies to this topic

#1 janrzm

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Posted 29 May 2013 - 22:54

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Hi

For the last week or so I've been taking a really good look at this lens on the Leica M Monochrom, M9 and Film M's.

I've done a User Report for anyone that's interested - The Japanese Summilux – Canon 50mm f/1.4 LTM

There are many images and info in the report and here are a couple of samples from this very capable lens.

Leica M6 - Fuji Astia 100F
Posted Image

Leica M Monochrom
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Leica M9
Posted Image

Cheers, Jason.
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#2 tappan

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Posted 29 May 2013 - 23:36

Hi Jason,
Very well done indeed!
Thank you,
Mark
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#3 farnz

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Posted 30 May 2013 - 00:37

With respect, there's something wrong with your depiction of the type 1 schematic: it's clearly not 4 components and 6 elements. It's difficult to tell whether the third element from the left is solid or an air gap but if it's solid then the three cemented elements form a group (or "component") and the formula is 4/8. If it's an air gap then there's an additional group and one less element and the formula is 5/7.

Either way, the optical designs for type 1 and type 2 are not the same.

Pete.
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#4 janrzm

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Posted 30 May 2013 - 00:49

With respect, there's something wrong with your depiction of the type 1 schematic: it's clearly not 4 components and 6 elements. It's difficult to tell whether the third element from the left is solid or an air gap but if it's solid then the three cemented elements form a group (or "component") and the formula is 4/8. If it's an air gap then there's an additional group and one less element and the formula is 5/7.

Either way, the optical designs for type 1 and type 2 are not the same.

Pete.


Hi Pete

The schematics are straight from original Canon Catalogues, I've not drawn them up.

I think the third element from the right is definitely an air gap, looking at it closely though from the right the 2nd group looks like it contains 3 elements which would still give 7 in total.......??

Cheers, Jason.

#5 farnz

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Posted 30 May 2013 - 00:53

Thanks, Jason, it's good to know that I appear to have the correct number of fingers although odd that the Catalogue would have miscounted.:rolleyes:

Pete.
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#6 TomB_tx

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Posted 30 May 2013 - 02:03

Thanks Jason - nice pictures and write-up. I've been experimenting with a later T2 for the past year, and have generally been pleased, especially with the small size for the speed. I also have a 50 1.8 from the same era, and overall like it better than the 1.4 - so it is also worth considering. (The 1.8 stays on my IIIf most of the time.)

#7 farnz

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Posted 30 May 2013 - 06:20

... (The 1.8 stays on my IIIf most of the time.)

Tom,

Does it obscure much of the viewing window? I have a Canon 50/1.2 but I don't use it on my IIIf for this reason (although I accept that the f/1.2 is larger than the f/1.8).

Pete.
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#8 janrzm

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Posted 30 May 2013 - 07:26

Tom,

Does it obscure much of the viewing window? I have a Canon 50/1.2 but I don't use it on my IIIf for this reason (although I accept that the f/1.2 is larger than the f/1.8).

Pete.


It would be interesting to know, I know the f/1.2 is larger as I've used one, the 50/1.8 I'd just always assumed to be almost the same as the 50/1.4

#9 TomB_tx

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Posted 30 May 2013 - 14:24

The Canon 1.8 blocks much less of the viewfinder than the 1.4, but more than a Summitar because of the diameter of the focus ring. Here are comparisons:
Attached File  Canon 50s.jpg   196.62KB   224 downloads
Attached File  Canon 50s-2.jpg   154.06KB   222 downloads
I'll try to get some "through the viewfinder" shots to illustrate.
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#10 TomB_tx

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Posted 30 May 2013 - 14:41

Here is a comparison via quick iPad shots. The 50 1.4 Canon:
Attached File  Canon 1.4.jpg   55.08KB   230 downloads
and the 50 1.8 Canon:
Attached File  canon 1.8.jpg   42.1KB   227 downloads
The Summitar barely is visible on the bottom of the finder, so I didn't bother with it.
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#11 farnz

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Posted 30 May 2013 - 17:56

Thanks, Tom, that's really clear and helpful.:)

Pete.
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#12 satijntje

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Posted 30 May 2013 - 22:53

What stands LTM for???

#13 farnz

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Posted 30 May 2013 - 23:53

"Leica Thread Mount". It's also sometimes called LSM (Leica Screw Mount) or L39 (because it's 39 mm).

Pete.
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#14 Ecar

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Posted 05 June 2013 - 19:16

Thank you, Jason. An interesting article - and some great images.
I own this lens and agree that it's an excellent performer - particularly if it's clean and properly adjusted (ditto for the 50/1.2).
If you like the Sonnar look - and manage to get hold of one at a reasonable price - I'd suggest you try the (earlier) Canon 50/1.5 as well.

Also, perhaps this thread would be better suited to the Lens sub-forum?
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#15 janrzm

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Posted 06 June 2013 - 02:53

Thank you, Jason. An interesting article - and some great images.
I own this lens and agree that it's an excellent performer - particularly if it's clean and properly adjusted (ditto for the 50/1.2).
If you like the Sonnar look - and manage to get hold of one at a reasonable price - I'd suggest you try the (earlier) Canon 50/1.5 as well.

Also, perhaps this thread would be better suited to the Lens sub-forum?


Thanks Ecar,

I have a small list of lenses to search out when I'm in Japan, the 50/1.5 is one of them, thanks again.

Jason


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