Which MF Pentax Teleconverter Recommended?
Posted 01/09/2011 - 06:25
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jeallen01 wrote:
1) Finding one (hens teeth?)
2) Being able to afford one!
3) The reduction in effective aperture - as I said above, anything more than a 1-stop reduction will cause problems with a lot of lenses.
1: Readily available (new) through Amazon Japan, as mentioned in some past posts.beachboy2 wrote:
No one mentioned the Pentax SMC F 1.7x AF Adapter. Makes the MF lens a very fast auto focus lens!
Probably because of three problems:No one mentioned the Pentax SMC F 1.7x AF Adapter. Makes the MF lens a very fast auto focus lens!
1) Finding one (hens teeth?)
2) Being able to afford one!
3) The reduction in effective aperture - as I said above, anything more than a 1-stop reduction will cause problems with a lot of lenses.
2 Yes expensive
3 Works fine with most prime lenses.
cheers
bb2
K5, K20D, Bigma, Sigma EX 105, Sigma EX 10-20, Sigma EX 28-70 F2.8, Sigma Ex 1.4TC,
Pentax 135 F3.5, Pentax 30mm F2.8 , Pentax 50mm F1.7, Pentax 55mm F1.8,
Super Taks: 35mm F3.5, 50mm F1.4, 135mm F3.5, 200mm F4
Vivitar TX 200mm F3.5,Vivitar (Komine)135mm f2.8, Vivitar 2X TC, Vivitar T4 400mm F6.3
Tamron SP 35-80,80-210 F3.8, Helios 44M, Mir 1B 37mm F2.8, Jupiter 9 85mm F2, Chinon 28mm F2.8, 3M-5A 500mm F8 etc etc
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1930 posts
17 years
W.London
No one mentioned the Pentax SMC F 1.7x AF Adapter. Makes the MF lens a very fast auto focus lens!
1) Finding one (hens teeth?)
2) Being able to afford one!
3) The reduction in effective aperture - as I said above, anything more than a 1-stop reduction will cause problems with a lot of lenses.