nicci78 Posted June 15, 2020 Share #21 Posted June 15, 2020 (edited) Advertisement (gone after registration) On 6/13/2020 at 11:31 PM, bags27 said: True. But at the long end, wide open will be f/6.3. With a teleconverter that will make it f/8 or even more. Without IBIS, we have to be realistic about handheld shots with reasonable ISO...at least this old guy has to be. 😀 It will have Sigma OS (optical stabilisation) it should be enough. Mirrorless cameras are not affected by slow max aperture. But you will have to raise ISO ! Edited June 15, 2020 by nicci78 Quote Link to post Share on other sites More sharing options...
Advertisement Posted June 15, 2020 Posted June 15, 2020 Hi nicci78, Take a look here New L-mount lenses for APS-C. I'm sure you'll find what you were looking for!
nicci78 Posted June 15, 2020 Share #22 Posted June 15, 2020 (edited) It can be funny to own a CL with only Sigma lenses : Three DC DN / Art 16-30-56mm f/1.4 = 24-45-85mm f/2.1 One DG Macro / Art 70mm f/2.8 = 105mm f/4.2 One DG DN / Contemporary OS 100-400 f/5.0-6.3 = 150-600mm f/7.5-9.5 Or one DG DN / Art OS 70-200mm f/2.8 = 105-300mm f/4.2 + TC 1.4x : 100-280mm f/4.0 = 150-420mm f/6.0 + TC 2x : 140-400mm f/5.6 = 210-600 f/8.4 Edited June 15, 2020 by nicci78 Quote Link to post Share on other sites More sharing options...
lct Posted June 15, 2020 Share #23 Posted June 15, 2020 1 hour ago, nicci78 said: Three DC DN / Art 16-30-56mm f/1.4 = 24-45-85mm f/2.1 What do you mean by f/2.1? At the longer focal length? Just curious. Quote Link to post Share on other sites More sharing options...
nicci78 Posted June 15, 2020 Share #24 Posted June 15, 2020 (edited) Equivalent depth of field. Focal length and aperture are physical value. They stay the same. But to compare one lens between different sensor size, we have to multiply the focal length and the aperture with the crop factor. Edited June 15, 2020 by nicci78 Quote Link to post Share on other sites More sharing options...
bags27 Posted June 15, 2020 Share #25 Posted June 15, 2020 2 hours ago, nicci78 said: It will have Sigma OS (optical stabilisation) it should be enough. Mirrorless cameras are not affected by slow max aperture. But you will have to raise ISO ! Phil, are you sure it will have OS? That would be excellent news. Raising ISO beyond 1600 on the CL and cropping severely for birds can be quite challenging. Quote Link to post Share on other sites More sharing options...
nicci78 Posted June 15, 2020 Share #26 Posted June 15, 2020 (edited) I am absolutely sure Ken. Because it is just the adaptation to mirrorless mount of their current DSLR lens 100-400mm f/5-6.3 DG OS HSM / C It is not a brand new lens. https://www.sigmaphoto.com/lenses/os-lenses/100-400mm-f5-63-dg-os-hsm-c Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! Edited June 15, 2020 by nicci78 1 Quote Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! ' data-webShareUrl='https://www.l-camera-forum.com/topic/310538-new-l-mount-lenses-for-aps-c/?do=findComment&comment=3993644'>More sharing options...
Peters Posted June 15, 2020 Share #27 Posted June 15, 2020 Advertisement (gone after registration) 21 hours ago, cp995 said: I'd like to see a 23/24mm f1.4 DC DN from Sigma ... Or Leica. In silver please. They did a beautiful job with the 23mm Summilux on the Leica X113... Quote Link to post Share on other sites More sharing options...
ramarren Posted June 15, 2020 Share #28 Posted June 15, 2020 (edited) On 6/13/2020 at 2:31 PM, bags27 said: True. But at the long end, wide open will be f/6.3. With a teleconverter that will make it f/8 or even more. Without IBIS, we have to be realistic about handheld shots with reasonable ISO...at least this old guy has to be. 😀 I use a tripod, almost always with any lens longer than 135mm. A 600mm f/8 is no problem at all. G Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! Edited June 15, 2020 by ramarren Quote Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! ' data-webShareUrl='https://www.l-camera-forum.com/topic/310538-new-l-mount-lenses-for-aps-c/?do=findComment&comment=3993672'>More sharing options...
lct Posted June 15, 2020 Share #29 Posted June 15, 2020 4 hours ago, nicci78 said: Equivalent depth of field. Focal length and aperture are physical value. They stay the same. But to compare one lens between different sensor size, we have to multiply the focal length and the aperture with the crop factor. I'm not sure we have since an f/2 lens is a f/2 lens whatever camera we put it on but i understand what you meant thank you. 1 Quote Link to post Share on other sites More sharing options...
nicci78 Posted June 16, 2020 Share #30 Posted June 16, 2020 (edited) Sometimes people are disappointed with full frame lenses mounted on APS-C cameras. Because Summilux-TL 35 on CL will not give you the shallow depth of field of Summilux-M 50 on M10. Just consider it as the equivalent of Summicron-M 50 on the M10 and voilà. No more disappointment. You know what you will get as a result. So the quick tip is : Noctilux-M f/0.95 = Summilux-TL f/1.4 Summilux-M f/1.4 = Summicron-TL f/2.1 Summicron-M f/2.0 = Elmarit-TL f/3.0 Summarit-M f/2.4 = Elmar-TL f/3.6 Elmarit-M f/2.8 = Elmar-TL f/4.2 Elmar-M f/4.0 = Elmar-TL f/6.0 Edited June 16, 2020 by nicci78 Quote Link to post Share on other sites More sharing options...
nicci78 Posted June 16, 2020 Share #31 Posted June 16, 2020 (edited) According to Le monde de la photo : Sigma 100-400mm is a stunning lens. Especially with APS-C cameras. Slight vignette with full frame. None with APS-C Light, but no tripod foot. Even in option. Sigma's optical stabilisation is weird, not always effective. It has to be custom with their USB mount accessory. Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! Edited June 16, 2020 by nicci78 2 Quote Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! ' data-webShareUrl='https://www.l-camera-forum.com/topic/310538-new-l-mount-lenses-for-aps-c/?do=findComment&comment=3994018'>More sharing options...
jaapv Posted June 16, 2020 Share #32 Posted June 16, 2020 You shallow depth of field sucks, you are not close enough. Quote Link to post Share on other sites More sharing options...
nicci78 Posted June 16, 2020 Share #33 Posted June 16, 2020 (edited) APS-C vs 24x36 choice is quite easy. If you want : more reach, think 1.5x teleconverter. Choose APS-C more resolution for telephotos. Choose APS-C more depth of field for the same aperture. Choose APS-C higher macro magnification. Choose APS-C smallest cameras and lenses. Choose APS-C more overall resolution. Choose 24x36 widest angle of view. Choose 24x36 very shallow depth of field. Choose 24x36 more heft for biggest lenses. Choose 24x36 Actually you may need both type of sensors. They are complementary to each other. It is nice to have L-mount covering them both. Edited June 16, 2020 by nicci78 2 Quote Link to post Share on other sites More sharing options...
nicci78 Posted June 16, 2020 Share #34 Posted June 16, 2020 I was wrong, according to L-rumors, it is a completely new lens : 22 elements in 16 groups instead of 21 in 15 add 1 FLD lens, hopefully for better image quality DG DN means new motor for hybrid camera instead of HSM motor which is more suited for DSLR lighter 1135g vs 1160g optional tripod foot instead of none maintain AF with TC 1.4x and 2x, instead of MF only better minimum shooting distance at widest focal length 112cm instead of 160cm Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! 1 1 Quote Link to post Share on other sites Simply register for free here – We are always happy to welcome new members! ' data-webShareUrl='https://www.l-camera-forum.com/topic/310538-new-l-mount-lenses-for-aps-c/?do=findComment&comment=3994125'>More sharing options...
Boojay Posted June 18, 2020 Share #35 Posted June 18, 2020 The Sigma 100-400 L Mount is showing as available for pre-order on some uk sites now for expected mid July delivery. Quote Link to post Share on other sites More sharing options...
Boojay Posted June 18, 2020 Share #36 Posted June 18, 2020 (edited) On 6/16/2020 at 1:59 PM, nicci78 said: I was wrong, according to L-rumors, it is a completely new lens : 22 elements in 16 groups instead of 21 in 15 add 1 FLD lens, hopefully for better image quality DG DN means new motor for hybrid camera instead of HSM motor which is more suited for DSLR lighter 1135g vs 1160g optional tripod foot instead of none maintain AF with TC 1.4x and 2x, instead of MF only better minimum shooting distance at widest focal length 112cm instead of 160cm Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! Sigma 100-400 L mount showing on some UK sites as available for pre-order - anticipated delivery mid July - can't wait! Excuse the double post - obviously excitement got to me. Edited June 18, 2020 by Boojay 1 1 1 Quote Link to post Share on other sites More sharing options...
vedivv Posted June 18, 2020 Share #37 Posted June 18, 2020 Also saw the announcement of 16mm, 30mm, and 56mm F1.4 DC DN Contemporary lenses for L mount. These Sigma has been around for a long time on Sony E mount generally got pretty good reviews. Would love to see someone to compare these lens to Leicas. The 16mm is 2 stops faster than 18/1.8, and 56/1.4 is two stop faster than 60/2.8 (though Leica is a macro lens). Quote Link to post Share on other sites More sharing options...
jaapv Posted June 19, 2020 Share #38 Posted June 19, 2020 On 6/16/2020 at 11:13 AM, nicci78 said: According to Le monde de la photo : Sigma 100-400mm is a stunning lens. Especially with APS-C cameras. Slight vignette with full frame. None with APS-C Light, but no tripod foot. Even in option. Sigma's optical stabilisation is weird, not always effective. It has to be custom with their USB mount accessory. Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members! Do I see correctly that it does not lose aperture between 250 and 400 mm? Quote Link to post Share on other sites More sharing options...
bags27 Posted June 19, 2020 Share #39 Posted June 19, 2020 The built-in optical stabilization system in the 100-400mm DG DN is rated for up to four stops of correction on its own, but the lens can also be combined with a camera's in-body image stabilization. When combined with IBIS-compatible cameras, the lens will correct for pitch and yaw axis rotations, allowing for even more powerful combined image stabilization. 1 Quote Link to post Share on other sites More sharing options...
AdHox Posted June 19, 2020 Share #40 Posted June 19, 2020 On 6/15/2020 at 9:24 PM, nicci78 said: Equivalent depth of field. Focal length and aperture are physical value. They stay the same. But to compare one lens between different sensor size, we have to multiply the focal length and the aperture with the crop factor. Multiply the aperture by the crop factor for equivalent depth of field. But don’t multiply the aperture for exposure. Best option is to forget equivalencies. Just shoot with a lens enough that it doesn’t matter. Use the same lens on an SL2 or a CL and they will look different. Use the lens enough on each body and each will look right without any need for mental gymnastics. 3 2 Quote Link to post Share on other sites More sharing options...
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