对基辅88突发奇想，他的机械故障不是高吗？我们能不能拆掉快门部分，
换成改口的镜间快门？当然不会用哈的镜头，（不然，何必买基辅呢）。
或：买一个可靠的机身，改口后用基辅的镜头。如：二手的博浪，PENTAX67。

卡口既然有基辅88转135的，那只要其他机的暗箱距离小于基辅88的暗箱距，
即可考虑用转口的基辅的镜头，（先不管自动光圈）。

基辅60卡口胶平面暗箱距74MM，基辅88卡口胶平面暗箱距约82MM，哪位
DX知道哈的暗箱距？或胶平快门的120机暗箱距小于基辅88的? 我们先看理想
上有无可能。
假如P67暗箱距72MM，只要车一个卡口，用88的镜头应无问题，（不顾光圈）
对于只有P67一机一镜的同好可考虑.......

哪位DX知道哈\P67\P645\M645\等胶平快门的120机的暗箱距？望告之，谢谢。

谢谢，
如果88换用镜间快门，那镜间镜头的距必须大于82mm，方好设计接环。
如果其他机用88的镜头，那机的距必须小于82mm，方好设计接环。
82mm是88的暗箱距。

仔细找找下面看。
不过您好象说反了。

Number of hits on this page: [Image] ---------------------------------------------------------------------------- Camera mounts & registers ---------------------------------------------------------------------------- CAMERA SYSTEM MOUNT TYPE REGISTER Alpa bayonet 37.80 Argus bayonet 44.45 Arriflex bayonet 52.00 Bolex breech 23.22 Bolex H8RX 1" x 32tpi thread 15.31 Bronica S2A bayonet & 57x1 thread 101.70 Bronica ETRS Bronica GS1 Compur 00 rear outer: 25x0.5 front inner: 22.5x0.5 rear inner: Compur 0 rear outer: 32.5x0.5 front inner: 29.5x0.5 rear inner: 29.5x0.5 Compur 1 rear outer: 39x0.75 front inner: 40x0.75 rear inner: 36x0.75 Compur 3 rear outer: 62x0.75 front inner: 58x0.75 rear inner: 58x0.75 Compur 5 rear outer: 92x0.75 front inner: 86x0.75 rear inner: 86x0.75 C-mount 1" x 32tpi thread 17.52 C-S mount 1" x 32tpi thread 12.50 Canon EOS bayonet 44.00 Canon EX1/2 VL bayonet 20.00 Canon R/FL/FD breech or bayonet 42.00 (Canon screw M39x1 thread 28.80) (Contarex 46.00) Contax RF 34.85 Contax/Yashica bayonet 45.50 Contax G1 bayonet 29.00 D-mount 0.625" x 32tpi 12.29 Exakta/Topcon bayonet 44.70 Exacta 66 breech lock 74.10 Eclair bayonet 48.00 Hasselblad/Kiev88 multi start thread 82.10 Hasselblad 500/2000 bayonet 74.90 Icarex breech lock 48.00 (Icarex 35/35S/SL-706 45.50?) K-mount bayonet 45.46 Kilarflex 92.30 Kilarscope 78.80 Kiev 60/Kiev Six breech lock 74.10 Kiev 88 multi start thread 82.10 Kowa Six/Super 66 breech lock 79.00 Konica AR bayonet 40.70 Konica F bayonet 40.50 Leica M bayonet 27.95 (27.80?) Leica R bayonet 47.00 Leica screw M39x1 thread 28.80 Leitz Visoflex II, III Leica M bayonet 40.00 (68.80 total) Leitz Visoflex I M39x1 thread 62.50 (91.30 total) M42 screw M42x1 thread 45.46 Mamiya 645 bayonet 63.30 Mamiya RB bayonet 112.00 Mamiya RZ bayonet 105.00 Minolta AF bayonet 44.50 Minolta MD bayonet 43.50 Miranda BM bayonet/M42x1 thread 41.50 Miranda Laborec M46x1 thread 41.50 Narcissus M24x1 thread 28.80 Nikon bayonet 46.50 Novoflex 100.00 Olympus OM bayonet 46.00 Olympus Pen F bayonet 28.95 Paxette M39x1 thread 44.00 Pentacon 6 breech lock 74.10 Pentax 6x7 bayonet 84.95 (74.10?) Pentax 645 bayonet 70.87 Pentax/Practica M42x1 thread 45.46 Practica bayonet Petriflex breech lock 43.50 Praktina breech lock 50.00 RAS Rectaflex 43.40 Ricoh breach mount 45.50 RMS 0.800" x 36tpi thread Rolleiflex SL35 bayonet 44.60 Rolleiflex SL66 bayonet 102.80 Schneider M26x0.5 T2 mount M42x0.75 55.00 Topcon IC1 bayonet 55.00 Voigtlander Bessamatic 44.70 Wrayflex M41.2 x 26tpi 42.05 Zeiss Ikon Flektoskop/F'meter 84.50 (119.35 total) Zeiss Ikon Panflex 64.50 (99.35 total) Zenith 3M M39x1 thread 45.46 Zenit 80 multi start thread 74.10 Microscopic lenses W 0.8" x 1/36" [36tpi] Tripod mount 1/4" x 20tpi 3/8" x 20tpi ---------------------------------------------------------------------------- Abbreviations used here and in other literature tpi = threads per inch M = metric thread Register = distance flange to film plane BM=Bayonet Mount TM=Thread Mount When is an adaptor between two systems possible? An adaptor is always possible; some are widely available, like M42-lens->brandX-camera or T2-lens->brandX-camera. However, even custom order adaptors have to obey an optical law: the register of the lens system should be LARGER than the camera system. If the register of the lens system is SMALLER, or EQUAL (less than 1mm difference) than the camera system, the adaptor requires an optical element to make infinity focussing possible. Otherwise such an adaptor would act as a macro tube! Also, the above non-optics formula only works if the lensmount is a bit smaller than the camera mount. The extra optical elements are essentially acting as a mild teleconverter; needless to say that this won't improve image quality, nor is it wanted when using wide angle lenses.... The above is also the reason why there are NO non-optics M42 adaptors for Nikon and Leica (at least none that allows infinity focussing). EOS adapting specialties Since the EOS system has a rather small register, some very cute non-optics adaptations are possible: one can mount Leica and Nikon lenses on an EOS body! The adaptors are quite thin, so the lens release mechanism requires major engineering, hence they are very expensive ($200). If one can live with a screw instead of a fast release mechanism, cheaper solutions are possible. (email me if you want more info about these adaptors). FD->EOS compromises Many people ask about the possibility of mounting FD lenses on EOS cameras....you can, but not without a large compromise. The following solutions exist: - Canon high end FD->EOS adaptor: as expensive as the EOS 1.4x, and also contains image degrading optical elements, thereby also acting as a slight (1.26x) teleconverter. Useless with wide angles, and only a real alternative if you already have expensive FD tele's, or can buy one cheap. - Canon macro FD->EOS adaptor: no lens elements, but you loose infinity focus. Only practical for macro purposes, where infinity focus is not required. - Aftermarket FD->EOS adaptors: cheap, but contain lens elements, just like the one sold by Canon, and are even worse in optical quality....there are more of these on the market, available for various lens/camera combinations, but all contain these image degrading lens elements. If you want to spoil the good quality of your FD optics, go ahead....;-(( T2-reverse adaptors For some applications, a T2-reverse adaptor would be very useful. Examples are mounting OEM lenses on T2 tilt/shift bellows, or even on cheap M42 bellows (by using a second T2->M42 adaptor behind the brandX-lens->T2-camera adaptor). Another application is using OEM still lenses on C-mount moving picture cameras, by means of a second T2-lens->C-mount-camera adaptor. This also works with Canon LC-1 & LC-2 video cameras. (email me if you want more info about these T2-reverse adaptors) ---------------------------------------------------------------------------- If you have any question, remark, comment, want to share some philosophy or just want to express your opinion about these pages, feel free to send email to: w.j.markerink @ a1.nl Back to main page & table of contents: Main Page

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