Teleconversion lens

Started Dec 22, 2004 | Discussions thread
morris Forum Pro • Posts: 74,668
Re: Teleconversion lens

Hi Batty,

I never knew that you could write such a straight forward response without your usual witty humor.

I agree with Batty on all counts, except that the TCON-17 appears to do slightly better that the B-300 when it comes to CA as it has a more modern coating. The difference is tiny and both are fine lenses.


batty wrote:

I haven't yet seen any plausible results from the Raynox 2020Pro,
rumours of which, have been knocking about the market for nearly a
year; it might be very promising, if anyone can track one down in
the wild.

In its absence, there are only two teleconverters that aught to be

Fujifilm TL-FX9 or,

Olympus TCON-17

The former, was designed for use with the in-built camera lens,
seen on the 4900/6900/602Z/S7000 cameras. As such, it offers 1.5x
and minimal problems with chromatic aberations and vignetting.

The Olympus offers 1.7x, and, with only a very teeny-weeny increase
in chromatic aberations over the Fuji lens.

Any other teleconversion lenses, for instance those labelled
'Titanium', or 'Crystal', are really, really, very bloody awful,
especially in comparison with a cloudy and wobbly sheet of
semi-opaque, scratched, perspex, tentatively presented somewhere in
front of your camera, by one of Santa's little helpers.

With the Fuji TL-FX9 (silver finish - older) or TL-FX9B (Black
finish - newer), the necessary 55mm adapter tube is included.

With the Olympus TCON-17 lens, a 55mm adapter tube, will need to be
sourced separately (

You might also be fortunate to find an Olympus B-300 on the
second-hand market. This is almost identical to their later TCON-17
(which replaced it, after a long, and empty - except for rumours,
gap), but the B-300 is better made. Both are quite a lot heavier,
and a wee bit more unwieldy, than the Fuji lens. (All three,
however, share the 55mm thread, for attachment to an adapter tube).

B-300 is still the bees knees, but heavier and bulkier than,

TL-FX9B, which is the prettiest and lightest.

TCON-17 is the everyday all-rounder.

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