|
|
Post by aitch on Apr 14, 2023 14:03:30 GMT
OK, I have too many cameras and I'm trying to decide which ones to cull. While thinking about it, I was idly having a look through the MPB site and came across a Tokina 400mm Cat lens in Fuji-X fit. Which I accidentally(?) bought. So that decided which system I'd keep - the Fuji. Except that I then discovered it's a T-mount (possibly T2, not sure what the difference is) lens and other T-mounts are available. But all that's by the by.
The question is, does anyone do an add-on tripod mounting foot I could add to the T-mount? The equivalent of 600mm is a swine to hand-hold, really needs a tripod.
Oh, and I vaguely remember reading, years ago, of an adapter you could add to long lenses that could make it usable as a(n astronomical) telescope. Anyone know anything about that? After all, the lens is basically a Schmidt-Cassegrain telescope adapted for photographic use...
|
|
|
|
Post by peterob on Apr 14, 2023 14:31:11 GMT
SRB have a whole section on T2 mounts. I've never heard of a T2 mount - I had a T-mount lens once and adaptor for (probably) Minolta but that's going back to the 1980s
|
|
|
|
Post by nickr on Apr 14, 2023 14:32:39 GMT
OK, I have too many cameras and I'm trying to decide which ones to cull. While thinking about it, I was idly having a look through the MPB site and came across a Tokina 400mm Cat lens in Fuji-X fit. Which I accidentally(?) bought. So that decided which system I'd keep - the Fuji. Except that I then discovered it's a T-mount (possibly T2, not sure what the difference is) lens and other T-mounts are available. But all that's by the by.
The question is, does anyone do an add-on tripod mounting foot I could add to the T-mount? The equivalent of 600mm is a swine to hand-hold, really needs a tripod.
Oh, and I vaguely remember reading, years ago, of an adapter you could add to long lenses that could make it usable as a(n astronomical) telescope. Anyone know anything about that? After all, the lens is basically a Schmidt-Cassegrain telescope adapted for photographic use...
Which version of the 400 is it? Because the one I've got, although interchangeable mount, certainly isn't T2. |
|
|
|
Post by zx9 on Apr 14, 2023 14:39:58 GMT
Cat lenses are not that heavy so as to bother with mounting the lens directly to the tripod, you should be fine mounting the camera to the tripod, which is how it would have been done when cat lenses were more popular in the 1980's
|
|
|
|
Post by petrochemist on Apr 14, 2023 15:00:01 GMT
Cat lenses are not that heavy so as to bother with mounting the lens directly to the tripod, you should be fine mounting the camera to the tripod, which is how it would have been done when cat lenses were more popular in the 1980's It does depend on the catadioptic. My MTO 1000mm f/10 is one of my heaviest lenses (nearly 2kg) Carl Zeiss Jena apparently made some 1000mm f/5.6 mirror lenses - the lightest of thee models reportedly weighs 13.9kg! see dprevived.com/t/cks-lens-post-carl-zeiss-jena-spiegelobjektiv-mirror-lens-1000mm-f56/1149/ |
|
|
|
Post by petrochemist on Apr 14, 2023 15:09:48 GMT
OK, I have too many cameras and I'm trying to decide which ones to cull. While thinking about it, I was idly having a look through the MPB site and came across a Tokina 400mm Cat lens in Fuji-X fit. Which I accidentally(?) bought. So that decided which system I'd keep - the Fuji. Except that I then discovered it's a T-mount (possibly T2, not sure what the difference is) lens and other T-mounts are available. But all that's by the by.
The question is, does anyone do an add-on tripod mounting foot I could add to the T-mount? The equivalent of 600mm is a swine to hand-hold, really needs a tripod.
Oh, and I vaguely remember reading, years ago, of an adapter you could add to long lenses that could make it usable as a(n astronomical) telescope. Anyone know anything about that? After all, the lens is basically a Schmidt-Cassegrain telescope adapted for photographic use...
I'm pretty sure T-mount & T2 are effectively the same (M42x0.75 threads with a 55mm flange distance) Quite a few adapters for SLR mounts to mirrorless bodies are available with tripod mounts. I expect all the common combinations are available with a bit of looking. I have two of the monocular converters in PK mount and another which I thinks is Minolta SR mount. They are designed to be used with 50mm lenses, but do still work with longer beasts. |
|
|
|
Post by nimbus on Apr 14, 2023 15:35:12 GMT
Rather careless of you...
If this is a recent lens it is probably APS-C, which might be worth bearing in mind, depending on your other system. If it is recent it's probably light enough to use with the camera mounted on a tripod or monopod, one of the advantages of mirror lenses is light weight for their focal length, I do remember a fairly recent and very compact Tokina 300mm mirror lens for Fujifilm.
|
|
|
|
Post by petrochemist on Apr 14, 2023 15:49:14 GMT
Rather careless of you... If this is a recent lens it is probably APS-C, which might be worth bearing in mind, depending on your other system. If it is recent it's probably light enough to use with the camera mounted on a tripod or monopod, one of the advantages of mirror lenses is light weight for their focal length, I do remember a fairly recent and very compact Tokina 300mm mirror lens for Fujifilm. The review of it on Petapixel claim its 'making it available in just about every major popular lens mount outside of L-mount.' that certainly sounds like FF to me! |
|
|
|
Post by nickr on Apr 14, 2023 15:56:58 GMT
Yeah, it's full frame. Mine is EF mount, but I can't get an EF-M T2 mount to fit it. I believe the current range of Tokina mirrors ARE T2.
And no, it doesn't need a mount, it's very light and compact.
|
|
|
|
Post by zou on Apr 14, 2023 17:11:10 GMT
Rather careless of you... If this is a recent lens it is probably APS-C, which might be worth bearing in mind, depending on your other system. If it is recent it's probably light enough to use with the camera mounted on a tripod or monopod, one of the advantages of mirror lenses is light weight for their focal length, I do remember a fairly recent and very compact Tokina 300mm mirror lens for Fujifilm. The review of it on Petapixel claim its 'making it available in just about every major popular lens mount outside of L-mount.' that certainly sounds like FF to me! The only adapter I want for L mount which I haven't located thus far is for C mount (CCTV lenses). Edit to add I can roughly hold my Fujian 35mm f1.7 on the E Mount adapter over the lens mount and it doesn't vignette anywhere near as bad as you might expect. 5:4 crop would take almost all of it away. |
|
|
|
Post by aitch on Apr 14, 2023 17:11:44 GMT
OK. A few answers to questions and that... It's the SZX Super. It weighs 355g, probably a bit more with the (metal) lens hood. It's not so much the weight that I am concerned(?) about, it's the balance. Maybe I am just being a bit over-cautious. It is a full-frame lens. - It has adapters for various mounts, including several listed as available mounts.
- One of the available mounts is 'T-mount', which seems to me to imply it's available without any adapter, in case you have a T-mount adapter not listed in the accessories column, eg Pentax-K? Or you can buy several of the adapters and use it with whichever body you favour on a particular day?
It all suggests to me that it is a T-mount lens and when you buy a particular mount version, they just shove the relevant adapter on it.
ETA: According to the PDF for the mounts, the spec for the mount appears to be the same for the T-mount.
|
|
|
|
Post by peterob on Apr 14, 2023 18:57:07 GMT
OK. A few answers to questions and that... It's the SZX Super. It weighs 355g, probably a bit more with the (metal) lens hood. It's not so much the weight that I am concerned(?) about, it's the balance. Maybe I am just being a bit over-cautious. It is a full-frame lens. - It has adapters for various mounts, including several listed as available mounts.
- One of the available mounts is 'T-mount', which seems to me to imply it's available without any adapter, in case you have a T-mount adapter not listed in the accessories column, eg Pentax-K? Or you can buy several of the adapters and use it with whichever body you favour on a particular day?
It all suggests to me that it is a T-mount lens and when you buy a particular mount version, they just shove the relevant adapter on it.
ETA: According to the PDF for the mounts, the spec for the mount appears to be the same for the T-mount.
Tokina page seems straightforward. Lens has a [male] T thread and the adaptors are T [female] to camera converters. On a Fuji body with IBIS you shouldn't need a tripod mount. The lens is very light compared to a Fuji 100-400 (which has stabilisation). I note the s/h price of the 100-400 is very low at the moment (< half new price). I kept mine rather than trade it for the 150-600. Although I have seen it written that the 100-400 is less good than the [excellent] Canon 100-400 mk ii I don't consider differences noticeable at 400 even wide open. |
|
|
|
Post by geoffr on Apr 14, 2023 19:51:39 GMT
I have a Sigma 600 f/8 CAT lens, I very rarely use it. It is manual focus, fixed aperture and, despite the low weight, unwieldy. Having bought a Nikon 200-500 f/5.6 I will be passing it on. Such lenses are not terribly flexible and thus tend to be carried only when one expects to use them.
i wish you well with your lens but I won't be surprised if you should report that you don't use it much.
|
|
neilt3
Full Member
https://www.flickr.com/photos/neilt3/
Posts: 134
|
Post by neilt3 on Apr 16, 2023 0:26:15 GMT
I'm pretty sure T-mount & T2 are effectively the same (M42x0.75 threads with a 55mm flange distance) Quite a few adapters for SLR mounts to mirrorless bodies are available with tripod mounts. I expect all the common combinations are available with a bit of looking. I have two of the monocular converters in PK mount and another which I thinks is Minolta SR mount. They are designed to be used with 50mm lenses, but do still work with longer beasts. IIRC , but I could be wrong , the difference between T mount and T2 mount is that the T2 has the inner ring secured with grub screws so you can rotate it . That's so the "top" of the lens , as in the markings you would expect at the top can be rotated so they are in the correct position . The original T mount are a single solid piece that didn't allow this . So with some lenses markings showing the aperture and focal distance etc , could be partway around the lens on the side , out of sight . Basically it removed the need for precision engineering on both the lens and adapter mount as you just adjust it to suit . |
|
