S adapter for SL

[ramarren]

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Keep in mind that the S has a .8x crop factor for 35mm equivalent.....so, for instance, the 120 has a 96mm equivalent field of view on the S, but would act as a 120 on the SL.  The DOF is also shallower on the larger sensor camera.  I mention this only because descriptions from S users may not fully correlate with use on the SL.

 

Also, one should read the S forum to understand AF motor issues with S lenses, even though Leica has stated that they will repair them even if out of warranty.  The 120 is most often cited, but not exclusively.  Best to go in with eyes open.

 

Jeff

 

 

S lenses, since they're designed for a larger format, don't have a crop factor per se. They're just whatever focal length they are when fitted to the SL. For example, a 100mm S lens will image exactly the same way a 100mm Canon lens would. 

[Jeff S]

S lenses, since they're designed for a larger format, don't have a crop factor per se. They're just whatever focal length they are when fitted to the SL. For example, a 100mm S lens will image exactly the same way a 100mm Canon lens would. 

 

As I said, the S120 will be a 120 on the SL.  We're in violent agreement.

 

But the S isn't a Canon, which was my point.  I didn't know what other word to use besides cropped on the S, by comparison, do you?

 

And the DOF will differ for the same lens on a Canon or SL versus on the S.

 

Jeff

[adamdewilde]

A 100mm f/2 canon lens and a 100mm f/2 Summicron-S lens will act the exact same way, with the exact same DOF. The rendering/falloff etc will be different due to different lens designs.

 

The ONLY advantage of the S lens is that you get to use the center portion of the lens (since it's no longer 80mm). Which in theory should mean better performance. Assuming S lenses don't have the mid zone dip Leica lenses are famous for. You make up for the performance in size. That's why Otus lenses are so big

 

If I hadn't just had a falling out with Leica, I would have an adapter in my hand right now. But I'm no longer interested in supporting the brand unless they make good. So no more Leica toys for me

[Jeff S]

A 100mm f/2 canon lens and a 100mm f/2 Summicron-S lens will act the exact same way, with the exact same DOF. The rendering/falloff etc will be different due to different lens designs.

 

 

 

The issue is not lens brand, of course, but 'practically' using a Canon lens on a Canon 'full frame' camera versus using that lens on a larger sensor Leica S.  You're right that the lens characteristics don't change, but apples to apples, the lenses must be used differently to maintain similar effect, lens rendering/design aside.

 

To fill the frame to the same degree and maintain DOF, one must change aperture, FL or subject distance...   http://www.cambridgeincolour.com/tutorials/digital-camera-sensor-size.htm

 

We've been through theses discussions before.....depends on how we frame the issue....so to speak.

 

Jeff

[adamdewilde]

The issue is not lens brand, of course, but 'practically' using a Canon lens on a Canon 'full frame' camera versus using that lens on a larger sensor Leica S.  You're right that the lens characteristics don't change, but apples to apples, the lenses must be used differently to maintain similar effect, lens rendering/design aside.

 

To fill the frame to the same degree and maintain DOF, one must change aperture, FL or subject distance...   http://www.cambridgeincolour.com/tutorials/digital-camera-sensor-size.htm

 

We've been through theses discussions before.....depends on how we frame the issue....so to speak.

 

Jeff

 

 

 

For me and the way I shoot (which tends to be pretty close to my subjects). I think the advantages of a bigger sensor are noticeable. But the tradeoffs are hard to cope with.

 

Well if you change the subject distance, you screw everything up. But if that stays the same and you just crop, it's the same as switching lenses (rendering aside). Practical though? Not in my opinion. And the technology isn't on our side yet. No 100,000mp sensor or lens that can out resolve it. 

[TheGodParticle/Hari]

I wonder if it works stacked with the Contax 645 adapter.

 

 

Sent from my iPad using Tapatalk

 

 

Any news if this is possible? 

 

I have some C645 lenses lying around and it would be awesome if it actually worked with stacking  

[DMarc]

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Any news if this is possible? 

 

I have some C645 lenses lying around and it would be awesome if it actually worked with stacking  

 

I just got the adapter today:

- No stacking possible (specifically mentioned in the user manual)

- No CS, AF and metering available

- AF noticeably slower than with the 24-90mm zoom (or than an S lens on an S006 or S007). I would for sure no try and use that combination for sport. There is a bit of hunting as well, even in plain daylight and on a non-moving subject.

- Just briefly tried it with the S100mm, but don't see why it would be different with the other lenses.

 

I'd be happy to hear other feedback, especially if the experience is different from mine ;-)

 

Marc

 

PS: Faster AF with the S120mm and less hunting. That lens is just back from Leica Germany though (AF issue discussed in a separate thread).

[Guest VVJ]

- No stacking possible (specifically mentioned in the user manual)

 

A bit disappointing from my point of view.  I would have been much more inclined to buy it if that had been possible.  Oh well...

[Steve Spencer]

I just got the adapter today:

- No stacking possible (specifically mentioned in the user manual)

- No CS, AF and metering available

- AF noticeably slower than with the 24-90mm zoom (or than an S lens on an S006 or S007). I would for sure no try and use that combination for sport. There is a bit of hunting as well, even in plain daylight and on a non-moving subject.

- Just briefly tried it with the S100mm, but don't see why it would be different with the other lenses.

 

I'd be happy to hear other feedback, especially if the experience is different from mine ;-)

 

Marc

 

PS: Faster AF with the S120mm and less hunting. That lens is just back from Leica Germany though (AF issue discussed in a separate thread).

 

Thanks for the really helpful report. Can you say a bit more about how fast the AF is with S120 as that is the combo I am thinking about getting. How much slower is it than the 24-90?

[DMarc]

I just got the adapter today:

- No stacking possible (specifically mentioned in the user manual)

- No CS, AF and metering available

- AF noticeably slower than with the 24-90mm zoom (or than an S lens on an S006 or S007). I would for sure no try and use that combination for sport. There is a bit of hunting as well, even in plain daylight and on a non-moving subject.

- Just briefly tried it with the S100mm, but don't see why it would be different with the other lenses.

 

I'd be happy to hear other feedback, especially if the experience is different from mine ;-)

 

Marc

 

PS: Faster AF with the S120mm and less hunting. That lens is just back from Leica Germany though (AF issue discussed in a separate thread).

 

This is from the S120mm, handheld, 1/800sec at f/2.5, ISO 50. Straight from the camera through Capture One and then a crop. I very much like the details and the overall rendering.

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[DMarc]

This is from the S120mm, handheld, 1/800sec at f/2.5, ISO 50. Straight from the camera through Capture One and then a crop. I very much like the details and the overall rendering.

L1010353 1.jpg

Uncropped

 

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[DMarc]

Thanks for the really helpful report. Can you say a bit more about how fast the AF is with S120 as that is the combo I am thinking about getting. How much slower is it than the 24-90?

In my experience AF with the 24-90 is instantaneous. With the S120, you notice that the focusing is taking place: not more than 1 second, I'd say. I think that it is fine for most uses. This is in bright daylight.

[adamdewilde]

Adapter doesn't work well with the 100S. Very similar to how the S-007 and the 100S don't play well together. (I've tried several S-007 cameras and several 100S lenses in combination, they all don't play nice so it's sad to see the same is true for the SL).

 

It works best with the 70S. And slightly less quick/accuate with the wides (35S/45S). The 120 macro works ok as well but is slow (nature of the lens). 

 

---

 

As far as it goes, the adapter makes the S-lenses as fast as they are on the S-007, which means they're faster then what they are on the S-006. Though what happens is, it focuses quickly to the point of focus, then it does a "fine tune" where it slows down. That fine tune makes you miss moving subjects (almost to the point of uselessness). The S-lenses obviously weren't designed for sports or anything really other then slow moving subjects.

 

 

- Nice to see Leica try, but I'm moving away from the brand so other then playing with the S-adapter for the day I won't be getting one. So I won't be posting samples or etc. Just very brief thoughts on it mentioned above.

[TheGodParticle/Hari]

And it's pretty loud

 

Tried it on the 120, the 100 and the 70

 

https://vimeo.com/170607740

[AlanJW]

I don't have any S lenses, but wouldn't the 70mm be a nice portrait lens on an SL?   I cannot tell from the pictures but the coming 50mm summilux looks to be absolutely huge.  I am wondering how the 70mm plus adapter would compare in size and weight?   There has also been no price announcement for the 50 so no way to compare a 70 (some are available used) plus adapter with pricing for the native SL 50.  Would someone with an S and a 70 care to comment?

[tom0511]

I dont think the 70+adapt would be any smaller than the 50 Summilux.

Also it would be f2.5 vs f1.4

[TheGodParticle/Hari]

I don't have any S lenses, but wouldn't the 70mm be a nice portrait lens on an SL? I cannot tell from the pictures but the coming 50mm summilux looks to be absolutely huge. I am wondering how the 70mm plus adapter would compare in size and weight? There has also been no price announcement for the 50 so no way to compare a 70 (some are available used) plus adapter with pricing for the native SL 50. Would someone with an S and a 70 care to comment?

Yes the 70mm gave very good results but there's a bug either in the adapter or - hopefully not, the SL

 

Using the adapter, the 70 i was testing had AF failure

 

Then we figured out that it works if you manually focus to infinity and then use the shutter to refocus on your subject

 

The size and weight of the 70 is much more bearable <to me> than the rest of the roost

 

The upcoming 50 will most likely not be a small discreet lens

[AlanJW]

The pictures that have been published of the 50 SL make it look quite a bit longer but perhaps not as wide as the 70 S.  I haven't seen weight or dimension specs published yet, though.  

 

 

 

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[Leicaiste]

The pictures that have been published of the 50 SL make it look quite a bit longer but perhaps not as wide as the 70 S.  I haven't seen weight or dimension specs published yet, though.  

 

 

 

 

The filter size being the same (82mm) I believe it will be as wide. 

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[AlanJW]

The filter size being the same (82mm) I believe it will be as wide. 

Good info.  Thanks.  Then it looks to me that the 70 is smaller than the 50 (shorter), which is strange given that it is a longer focal length.  But I am not a physicist.