tag:blogger.com,1999:blog-8331638045168087261.post145021734909599969..comments2024-03-25T03:34:38.821-04:00Comments on About Photography: Metabones Speed Booster Nikon G lens to Fuji X-mount camera adapter - a hands on reviewTom Grill:http://www.blogger.com/profile/06149972936838234537noreply@blogger.comBlogger20125tag:blogger.com,1999:blog-8331638045168087261.post-91682590357386633382014-08-21T11:24:46.483-04:002014-08-21T11:24:46.483-04:00Ah, I see now that you got there ahead of me...I&#...Ah, I see now that you got there ahead of me...I'm the astronomer/optical physicist who posted above. <br /><br />We made exactly the same point on the optics - except I managed to not be insulting (even if I do feel the same way about US Republicans :) )Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-8331638045168087261.post-41475888389986253292014-08-21T11:20:48.073-04:002014-08-21T11:20:48.073-04:00"An f/2 lens with mounted Speed Booster will ..."An f/2 lens with mounted Speed Booster will not become f/1.4 lens, it will remain f/2 lens. That is the fact of life and physics."<br /><br />"An f2.0 lens will have a physical aperture of f2.0 with a light transmission of f1.4."<br /><br />Well, I'm afraid that both these statements are wrong! The combination of an f/2 lens and Speed Booster DOES indeed become a physical f/1.4 lens, because the focal length is reduced (the actual, physical focal length, not some crop/effective concept) by 0.71x, while the physical clear aperture of the entrance pupil remains the same. The f-ratio is defined by [focal length] divided by [entrance pupil diameter], so f/2 drops to f/1.4.<br /><br />Take it from me, I'm an astronomer/optical physicist...we've been doing these sorts of simple calculations for a couple of centuries :)Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-8331638045168087261.post-33903875568986901542014-04-14T00:17:19.207-04:002014-04-14T00:17:19.207-04:00This comment has been removed by a blog administrator.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-8331638045168087261.post-54393921001415447012014-04-14T00:16:29.433-04:002014-04-14T00:16:29.433-04:00This comment has been removed by a blog administrator.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-8331638045168087261.post-27737915960205320652014-03-18T07:03:50.377-04:002014-03-18T07:03:50.377-04:00This comment has been removed by a blog administrator.Anonymoushttps://www.blogger.com/profile/10305516630087293582noreply@blogger.comtag:blogger.com,1999:blog-8331638045168087261.post-64849982587015173142013-09-12T04:35:04.389-04:002013-09-12T04:35:04.389-04:00http://www.metabones.com/images/metabones/Speed%20...http://www.metabones.com/images/metabones/Speed%20Booster%20White%20Paper.pdfAnonymousnoreply@blogger.comtag:blogger.com,1999:blog-8331638045168087261.post-22940897959640814182013-09-09T14:18:20.451-04:002013-09-09T14:18:20.451-04:00I have Kipon brand adapters for Nikon G and Leica ...I have Kipon brand adapters for Nikon G and Leica M. Not too expensive and so far I've had no issues with them. Decently made. Works fine.Tom Whitehttps://www.blogger.com/profile/03707445619651296310noreply@blogger.comtag:blogger.com,1999:blog-8331638045168087261.post-60080814234881331952013-09-09T14:16:08.480-04:002013-09-09T14:16:08.480-04:00I agree it may seem ridiculous to put a massive le...I agree it may seem ridiculous to put a massive lens on such a small camera, but it adds to the versatility of the system. I use an adapter - not the speed booster but a Kipon Brand plain adapter - mainly with an old Nikon manual focus 100mm F2.8 lens, which is a great lens and around a similar size to Fuji's 35mm 1.4. I therefore get an excellent 150mm equivalent telephoto lens at a very portable size. As I already had the lens and was using it on my SLR's, makes perfect sense to be able to use it on the Fuji also. Tom Whitehttps://www.blogger.com/profile/03707445619651296310noreply@blogger.comtag:blogger.com,1999:blog-8331638045168087261.post-2323794483624560642013-09-08T16:23:19.507-04:002013-09-08T16:23:19.507-04:00Hey, Paul, you make some really good points. Thank...Hey, Paul, you make some really good points. Thanks for sharing. - tTom Grill:https://www.blogger.com/profile/06149972936838234537noreply@blogger.comtag:blogger.com,1999:blog-8331638045168087261.post-1883541767365123012013-09-08T15:36:30.207-04:002013-09-08T15:36:30.207-04:00you really miss the point of this device , and ask...you really miss the point of this device , and ask too much od it by paring it with unusual primes and zoom lenses <br /><br />try it with a fast 85mm 1.4 like the amazing and cheap korean rokonon with great bokeh iq , unbelievably soft creamy bokeh for such a budget optic<br /><br />and see a beautiful ff frame bokeh experience truly , at f1 no less!! hello <br /><br />even paired with a cheap 50mm 1.8 nikon af, the metabones sings a ff experience with very good iq better than the iq of the 50mm on apsc in a hollow adapter .... look into it ... its the delicious creamy bokeh experience of full frame that is this devices raison d`etre<br /><br />looking for sharp edges ?... for goodness put down the legacy lenses and use a good fuji x prime at f 4 or 5.6 ......just sayin :)<br /> <br /><br />and thank you for a fun read , none the less <br /><br />paul in nycnycity paulhttps://www.blogger.com/profile/12061499150753506147noreply@blogger.comtag:blogger.com,1999:blog-8331638045168087261.post-38599613545228311782013-09-08T07:27:26.734-04:002013-09-08T07:27:26.734-04:00i don't get it . Fiji X -system is all about l...i don't get it . Fiji X -system is all about losing weight and bulkiness of equipment . Why should I combine the bulky lenses of an other brand such as Nikon or Canon as the lenses of Fuji ar at least equal in qaulity ? <br />The Bokeh is even better ( for me anyway ) . <br />but most of all i don't have to by me a mule to carry al te stuff . Anonymoushttps://www.blogger.com/profile/00964503027203037807noreply@blogger.comtag:blogger.com,1999:blog-8331638045168087261.post-49393599786003019342013-09-04T16:34:45.392-04:002013-09-04T16:34:45.392-04:00Mike, Novaflex adapters are well made, but verrrrr...Mike, Novaflex adapters are well made, but verrrrry expensive There are of similar adapters available on ebay for a fraction of the cost. Just search on "adapter nikon fuji x". Keep in mind that this type adapter is manual focus only (including the Novaflex). Since you menitioned you want to convert Zeiss lenses, they are already MF so it shouldn't matter. One thing to look out for: Some adapters work with Nikon G lenses while others do not. May not be a problem for you if you don't have a G lens, but something to keep in mind. I have one of these G adapters for my Fuji and also a Leica R adapter. They work fine because they are really such a simple mechanism. Tom Grill:https://www.blogger.com/profile/06149972936838234537noreply@blogger.comtag:blogger.com,1999:blog-8331638045168087261.post-43487479383448493552013-09-04T14:09:00.649-04:002013-09-04T14:09:00.649-04:00Thanks so much, Tom.
Your review of the SB was a ...Thanks so much, Tom.<br /><br />Your review of the SB was a real education, both in terms of the SB, the X-pro1. I was ignorant about the existence of adaptors, and I am ecstatic about the possibility of putting my Zeiss lenses to use, as well as saving money for new glass.<br /><br />Do you have any recommendations for a "straight through adapter"? B&H carries one by Novoflex (a brand I've never heard of, for a price close to the SB): http://www.bhphotovideo.com/c/product/888375-REG/Novoflex_fux_nik_Adapter_for_Nikon_Lenses.html .<br /><br />Again, I appreciate your help, and I will stay tuned in to your blog.<br /><br />MikeMichael Stanohttp://michaelstano.zenfolio.comnoreply@blogger.comtag:blogger.com,1999:blog-8331638045168087261.post-43350321056313524072013-09-04T11:31:14.616-04:002013-09-04T11:31:14.616-04:00I hear you, Mike. The older I get, the less gear I...I hear you, Mike. The older I get, the less gear I want to carry.<br /><br />The X-Pro1 is a sensational camera, but using the Zeiss lenses, particularly the wides with it is going to compromise their quality somewhat, especially on the edges. I'd be more inclined to use them with a straight through adapter. That way the 24 becomes 35, the 35 becomes 50, the 50 becomes 75, and the 100 becomes 150, and the lenses are still working at their optimum resolution. <br /><br />Then you could add just one lens, either the Fuji 14 or Zeiss 12, to cover the widest angle. If you don't need something as long as a 150, you sell that to help cover some of the cost of the 14 or 12. Tom Grill:https://www.blogger.com/profile/06149972936838234537noreply@blogger.comtag:blogger.com,1999:blog-8331638045168087261.post-82130758310457170062013-09-04T11:06:51.274-04:002013-09-04T11:06:51.274-04:00The f number is a ratio defined as the focal lengt...The f number is a ratio defined as the focal length of the lens divided by the aperture diameter. The speed booster decreases the focal length. With a constant maximum aperture, the wide-open f-number is decreased. <br /><br />So to the other anonymous, the stupid one, the f-number is not the "physical aperture." It is a ratio. You must be a Republican 47%er, a fine example of what's making the USA swirl down the toilet vortex. Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-8331638045168087261.post-11442909867973166702013-09-04T10:16:53.981-04:002013-09-04T10:16:53.981-04:00I have been interested in scaling down. I have a ...I have been interested in scaling down. I have a host of Nikkor lenses, but also 4 Zeiss lenses--a 24, 35, 50, and 100 mm. What do you think of a Fuji X-pro1, the Speed Booster, and the Zeiss glass as a compact kit?<br /><br />TIA for any "adult supervision"!<br /><br />MikeMichael Stanohttp://www.michaelstano.zenfolio.comnoreply@blogger.comtag:blogger.com,1999:blog-8331638045168087261.post-24954565086235635632013-09-04T02:38:06.764-04:002013-09-04T02:38:06.764-04:00I meant 150$ _more_ per each, sorry.I meant 150$ _more_ per each, sorry.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-8331638045168087261.post-43040188139260862222013-09-04T02:36:18.119-04:002013-09-04T02:36:18.119-04:00An f2.0 lens will have a physical aperture of f2.0...An f2.0 lens will have a physical aperture of f2.0 with a light transmission of f1.4. I'd like very much to buy both Nikon g to m43 and C/Y to m43 Speed Boosters. Too bad in Europe we must pay 150$ apiece... Poor, if not any, distribution here; this is a Metabone's fail.Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-8331638045168087261.post-42463001729982313792013-09-03T17:49:26.541-04:002013-09-03T17:49:26.541-04:00An f/2 lens with mounted Speed Booster will not be...An f/2 lens with mounted Speed Booster will not become f/1.4 lens, it will remain f/2 lens. That is the fact of life and physics. Anonymousnoreply@blogger.comtag:blogger.com,1999:blog-8331638045168087261.post-64686450047455386832013-09-03T13:36:04.535-04:002013-09-03T13:36:04.535-04:00Is this thing at all compatible with AI/AIS MF len...Is this thing at all compatible with AI/AIS MF lenses? And if it is, what's the trade-off? Anonymousnoreply@blogger.com