CONTAX CLUB Carl Zeiss 討論區

放落部ＡＸ度，咁就信晒部機囉

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無玉無求...

Well , how bright or dim the screen is not just a matter of the lens, but the actual light present. For its worth, that's why manual focusing on the ground glass part is important and an important skill to acquire ..

Trying to focus on microprism or split image with slow lens say 4.5 or beyond is bound to give trouble.

Although I've never had much experience with the 500 Mirotar, but my limited experience with it is its not actually that hard to focus when compared to similar focal length ones. I think its down to how familier one get to acquire with the lens/camera and the shooting condition.

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hhahahha, actually, have not tried my 500/8 with the AX but I really doubt if the AF still work with this small aperture.

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鯨魚愛Zeiss

Thanks all for the info. Personally I have used Russian 500/8 and 1000/10 before, and do not quite like the bokeh of the mirror lens under certain situations.

Guess I will live with the Contax 300/4 with Mutars II and III and the Pentacon 500/5.6 for the time being. But the Pentacon 500 is a 4kg beast quite challenging to use.

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For these type of lens, I prefere Minolta 135mm system. Much more handy and quality is very NICE. I tried for just once with my friend's gears. And I like ROKKOR very much since then.

From using the 500/F8, I had the experience that the split image was not reliable, the split image aligned but the image from the rest wasn't that clear and ended up in a blurred image. From then on, I use the matt portion to focus rather than the centre split image when using the 500.

From a contax zeiss topic in Xeitek, a matt focusing screen is better than a centre split image type. Can I have your insight on this matt screen? If it's better, can also advise where to find this Contax matt screen. Many thx.

I think centre-split image screen is not a bad thing, sometimes it's quite effieient in certain scene with good light conditions. It just happen to get trobule for you in adverse light conditions & when the aperture of your lens is so small.

In this sense, a centre-split screen is obviously not a proper choice with any f=8 Mirror lenses. The screen is so dim (leads to blackout of split area), let alone Mirror lenses are so sensitive to focus accuracy, as I suggested above.

FYI, forget about AX. She doesn't happy to focus in f=8 (sometimes ok, sometimes bad). CONTAX did provide matt screen as options, and different models requires different type of matt screens. You may looking for screens in both local & online shops. Just an option, you may even find other brands e.g. "Beattie" (much expensive then CONTAX one) which provides stuff for RTS, RTSII & RTSIII and it can be order via overseas camera shops.

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鯨魚愛Zeiss

Thank you Clifford for your advice.

I also search in Photosharp about this focusing screen issue for my RX and RXII. FW-3 is the right model for RX models. May I ask if you have any idea that FW3 is still available on market. If yes, grateful for sharing with me the shops with stock.

Sorry that I don't have any idea of new/used focusing screen availability. I suggest you may contact Universal Optics (UOI) or any other local shops for what you want.

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鯨魚愛Zeiss