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reso
Posted 18/04/2011 - 20:30 Link
i want to make my 55-300 longer and need some advice on the way to go whats the best m/f with a A 1.4x-s or tamron or kenko a/f
k5iis sigma 8-16 sigma 10_20 hsm tamron 17-50 pentax faj 18-35 pentax da 18-135 tokina 20-35 tokina 28-70 atx pro pentax dfa 100 wr
pentax da*50-135 pentax da*60-250 sigma af 400mm pentax 1.7 af adapter
Pentax af aw 1.4 rear converter and a flash
simonkit
Posted 18/04/2011 - 21:19 Link
I tried a T/C a while ago with the 55-300 (tamron 1.4) my recommendation would be don't bother - too slow and IQ suffers too much

Simon
Zed
Posted 18/04/2011 - 21:21 Link
I've got a kenko which is pretty good, see my Merganser shot. It suffers, quality wise, unless used in good light. The af is a bit slow, hunts a bit, but other than that it's a good piece of kit.
Used on a K10D with Sigma 70-300
'Some say, life is. Some say, what is life?'
Bad Company
Algernon
Posted 18/04/2011 - 21:47 Link
The 1.4x-s is OK on the 55-300mm. MF only.
Half Man... Half Pentax ... Half Cucumber

Pentax K-1 + K-5 and some other stuff

Algi
reso
Posted 19/04/2011 - 14:09 Link
thanks whats the going rate for a used 1.4x-s?
phill
k5iis sigma 8-16 sigma 10_20 hsm tamron 17-50 pentax faj 18-35 pentax da 18-135 tokina 20-35 tokina 28-70 atx pro pentax dfa 100 wr
pentax da*50-135 pentax da*60-250 sigma af 400mm pentax 1.7 af adapter
Pentax af aw 1.4 rear converter and a flash
Algernon
Posted 19/04/2011 - 16:40 Link
reso wrote:
thanks whats the going rate for a used 1.4x-s?
phill

On ebay £100-£200+ A dealer would probably be nearer to £100. They seem rarer than the 1.7x's though.
Half Man... Half Pentax ... Half Cucumber

Pentax K-1 + K-5 and some other stuff

Algi

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