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does any use TL lenses on SL2?


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7 hours ago, MJB said:

It’s the same on both because the TL lenses are designed to cover the smaller area of an APS-C sensor.  When mounted to an SL body the camera is forced into crop mode with the same 1.5x crop factor. 

Therefore, the TL 23mm lens used on a SL body, will have an effective focal length = 35mm on the SL body (with the same 1.5x crop factor?) ?  Or will be exactly to be 23mm focal length on the SL full-frame body?    

But smaller pixel file size than the 24 on a CL body?  I'm quite confused with this issue, I have the 23mm and the 55-105 TL lenses. 

Edited by yst
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1 hour ago, yst said:

Therefore, the TL 23mm lens used on a SL body, will have an effective focal length = 35mm on the SL body (with the same 1.5x crop factor?) ?  Or will be exactly to be 23mm focal length on the SL full-frame body?    

But smaller pixel file size than the 24 on a CL body?  I'm quite confused with this issue, I have the 23mm and the 55-105 TL lenses. 

It doesn’t matter which body you use the TL lens on, there will always be a 1.5x crop factor. Even with the SL, because the TL lenses cannot create an image circle large enough to cover the full frame sensor and so the SL enters “crop mode” with the TL lenses mounted. 

In crop mode, I believe the SL and SL2-S create around 10 MP files and the SL2 around 20 MP files, so you can see that the lenses perform best on the APS-C bodies they were designed for, yielding 16 MP (T,TL) or 24 MP (TL2, CL) files - ie, the full sensor resolution.  

A lot of people on the Leica forum, more so than other camera forums I frequent, tend to think of full frame sensors as ideal and are used to only seeing disadvantages with smaller sensors. But remember that “full frame” is a rather arbitrary term and that there are pros AND cons to any sensor size. A primary advantage of an APS-C sensor is that you can have appreciably smaller camera bodies and lenses with very little penalty in terms of image quality. But you have to understand that those smaller lenses create smaller images that cannot physically cover the entire surface area of a larger sensor than originally intended. 

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  • 2 months later...

I enjoy CL very much for its compactness and picture quality, but TL lenses are relative big to aps-c sensor.  For example, TL 23mm lens with hood!
 

aps-c sensor with relative large L-mount which is already bigger than M-mount which cover 24mm x 36mm image area.

 

I mount Elmarit-M 28mm asph V1 on CL and it is the ideal size of compactness for aps-c camera with prime lens.

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  • 4 months later...

Funny the responses on this thread. Someone asks if "anyone" uses TL lenses on the SL2 and 1/2 the people who respond are telling the OP they should use a TL lens on a crop sensor because that's what they are designed for. Hogwash...They have crop mode on the SL2 so you can choose from and enjoy both formats.

The 20 MP files are more than enough MP's for these lenses. I mean 20-24MP's...Not that big a deal. The TL has 16 right?

I wondered the same thing when looking at the cost and size of the SL lenses. I've owned them all except the 90 cron and the 16-35....They're awesome for sure, but they're HUGE. I have many M lenses as well and yes, those were designed for my m body but they're awesome on my SL2 too.

Case and point, my problem with the Summilux-50SL....I've owned it 3 times because I love the images it produces, problem is, it weighs more than a standard Japanese 70-200. So, I end up leaving it at home and using it for special occasions which means I miss too many shots with my favorite 50 and end up selling it.

I own 2-50 Noctilux's, the .95 and the 1.2 and the m APO but they don't have AF. The Cron SL APO 50 is still pretty big and f2 and I've owned it and wasn't blown away. That leaves a new off brand 50/1.4 coming and the new Cron that will hit the market someday soon, but soon could be next year.

So for me, the answer for my walk around 50 is the TL 35/1.4....Who cares if it only uses the middle part of my sensor, it's still smaller than the new Cron coming out. It's creamy bokeh, beautiful colors, high contrast sharpness across the frame and LOW LOW price on the used market. ($1250 US) for open box condition is an easy choice. It's a Leica lens that makes images that are known to be hard to distinguish from its big brother (the 50 SL Lux) and I can walk around with it all day. One last thing...It looks like it belongs on the SL body. It's sleek and beautifully simple.

I wouldn't feel the same way if we were talking about a 24mp SL2-S or SL, 10mp files are too big of a drop (for me)

 

 

 

Edited by thatkatmat
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The TL's are good lenses but the Apo SL's are way above.

From my point of view they remain very interesting to use with the SL
because they allow to benefit from a better weight with a truely leica rendering.

I share your point of view the tl 35 is magnificent considering its size.
It has its place in the bag in complement of the 24-90mm for example.

Edited by Torpille
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  • 2 months later...

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I just purchased a TL 35 Summilux, and I was wondering why it needs to be cropped to APS-C format. At least technically I think it should be possible to cover a 21x21 mm sensor area, so it would make 1:1 shots almost in the same format as a FF lens on the FF sensor of the SL series. (24x24)

The only issue is that apparantly it always switches to cropped mode on the SL. I would be happy to shoot FF and crop any vignetting away.

Does anyone know how to 'trick' the SL into thinking it has mounted a L lens, or to make it think it just has mounted a third party FF lens with AF?

Edited by dpitt
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I have been a long time CL user and loved this camera. But as Leica decided to discontinue this excellent camera, and I had several TL lenses, it was for me a logical decision to move to SL2. 

I can use my TL lenses as the camera goes automatically to APSC format. The MP drops to 20, vs 24tmp in CL. But as the sensor in SL2 is superior to the one in CL, I get much better pictures with SL2. Also, it has many more features and option that CL didn’t have.

Although I very much miss my CL, I do not regret this move; I get better result than with CL. And, the weight or size of SL2 don’t bother me at all; I got used to that after a few days.
 

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  • 2 months later...

Man...Just bought an 11-23mm ...the 11-23 on my SL2 is REALLY sweet, perfectly centered and sharp all the way into the corners. Plus, it's "small" on my SL2 comparatively speaking. Has beautiful colors. I have to say, I didn't expect it, even the distortion at 11mm is minimal. Better than any 16-35 I remember shooting. Just checking in and adding my .02$

I always read that the non constant aperture is the only negative...Doesn't feel like a negative when you're shooting it and the corners are perfect wide open :)

So far just shooting off my deck in to the woods and in the house...I'll post a pic when I shoot something less boring

cheers

Edited by thatkatmat
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