SRS just use stock pictures and descriptions for TC's. So you
really have to ask.

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Virgin recently abandoned their free AV/Firewall software and wanted people to pay and annual charge. I didn't subscribe and without warning they left me without any Firewall protection

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The one's they used to stock were screwdrive only, but it says
made specially for SRS so it's worth asking Chris.

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It's not Old Joe Coco is it?

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Looks a nice light

Your getting a bit of green fringing which I think is
easy to remove.

If Pentax had released the blue K-01 at first it would probably have been a big success

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Light seems to be the main problem with these TC's. I've just tried the following on a Pentax MZ-S +DA*300mm f/4. They all work with screwdrive, but the 2X hunts worse than the 1.4x and 1.7x.... The screwdrive is very slow though. NO 2X will work with a Pentax APS-C Digital Camera.

Tamron 1.4x OK slow, but positive.
Jessop 1.7x OK slow, but positive.
Teleplus 2x Works..... hunts a bit... eventually gets there.

I'm surprised they haven't gone for a 1.7x and if it's a light problem the 1.4x might not even be that.

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The 560mm came from using a lens element of 100mm diam. /aperture from a telescope design. 100 X f/5.6 = 560mm
This kept the cost down. 600mm would have needed an odd sized 108mm diam element.

By keeping the old Pz/SDM contacts on the new TC they are restricted
in the diam. of the elements that they can use.

The new TC looks like a Teleplus rebrand and hasn't got anything
new unless they have managed to fit a chip inside.

It's unlikely the new TC will work without a firmware upgrade which
at the very least will allow FL input with any TC.


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I'm surprised no one else has mentioned it...... The hand looks
really ugly... with the straight bit between the thumb and 1st finger.
It might be possible to clone the background and far arm to hide it.

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Interesting pics...... just hope I never have to take
my 43mm apart

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It's time Ricoh started paying him for running that site.

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