Hi All,
I am due a bit of a bonus in the next few weeks and so I wish to try to satisfy my LBA and be able to shoot the karters at my local karting track so fast AF is essential. Also I recently sold "my precious" Sigma 105 macro and need to replace it, I also what to satisfy reach so 500mm is on the list.
Here are my options (please bear in mind for ultra close up I have the tubes and a 50mm)

1. sigma 70-200 f2.8 macro + sigma 150-500 (Reach + fast but iffy on macro)

2. DA*60-250 + Pentax 100mm macro WR (weather proof solution but no reach)

3. Bigma + Pentax 100mm macro WR (No mid range)

Got any O's
What abart P's

I have had another bash at the Great Tit that I put in the gallery the other night, I've pushed up the sharpness, added a touch of brightness and punched up the colours... Better?

Before - link

After - link

I will definitely bear both offers in mind, cheers guys

Thanks Jon, I will be scouring the internet in an attempt to get my hands on one, I did make the mistake a while ago of buying an Opton 500mm but it's only a good door stop so I am using the adapter from that to test the Soligor and so far I'm impressed, take look at this cropped shot
link

Numpty, Of course it won't focus it's been moved away from the sensor ... der

Has anyone got a M42 adapter they don't want any longer?

I have bought a Soliger 400mm for £19.35, tested it this morning and I'm pretty happy with the IQ certainly for < £20. But I don't have a propoer adapter and as a result the lens doesn't line up correctly it's about 60 degrees turned from the upright position. A question too, would having the wrong adapter restrict it from focusing over distance?
So to cut a short story long .. does any one have a M42 adapter gathering dust?

So if I put 65mm of tubes on what do I put in as the focal length for a 50mm. Sorry to butt in but it too has been bugging me. Hope you don't mind.

How much ISO (Paul)? PM me

Very much work
I never have the courage to not photograph the whole thing.