hans_h._siegrist1

Circular polarizers (CP) are required whenever some of the light

falling through the lens is diverted for metering (selective or spot)

or autofocus purposes. Since there is no autofocus with FD system

cameras, CP are mandatory for the following FD bodies: FTb, F-1 (1st

version), F-1N, T80 and T90. Of course, CP can also be used on all

other FD system bodies.

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Cheers, Hans

I'm not sure whether you will get decent results with a Canon FD lens

plus an aftermarket teleconverter. You will have to try...

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The FD 85 mm f/1.8 is an excellent portrait lens, maybe a bit soft at

f/1.8, but so much the better for our ladies when they get a bit

older ;-). Watch the depth of field which is hardly present at such a

large aperture. No macro feature at all since the minimum focus

distance is at about 90 cm (3 ft). Great for landscapes, too, helps

you concentrate on what's important.

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Hope this helps.

Cheers, Hans

As to the last answer: the F-1N does NOT have mirror lock-up!

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Cheers, Hans

The FD 400 mm f/4.5 (new FD mount, not the previous SSC version) can

be used with the FD 1.4X-A extender.

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Cheers, Hans

The optical formula of this lens contains one UD and one fluorite

element. It is among the best zoom lenses Canon ever made.

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Cheers, Hans

The 2X-A was marketed much earlier than the 2X-B. I suppose that Canon

realised that its optical formula was less appropriate for lenses with

a focal length below 300 mm. Exceptions are the 200 mm f/4 Macro where

Canon recommended using the 2X-A and the 300 mm f/2.8 L which

apparently gives better results with the 2X-B. Both converters can

also be used with zoom lenses. The 2X-A is recommended for zooms

including the 300 mm focal length.

There is also a 1.4X-A converter for fixed focal lengths of 300 mm and

higher. According to Canon it is not recommended to use it on zooms.

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Hope this helps.

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Cheers, Hans

I have been using an EOS EZ430 flash on my T90 for many years. It

works perfectly well in A-TTL and TTL mode. The 2nd sync flash

function was rewired for the EOS cameras so it doesn't work with the

T90. I also use the 300TL regularly but prefer the EZ430 when I need

faster recycling times.

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Hope this helps.

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Cheers, Hans