Teleconverter summary
Posted 02/02/2011 - 21:51
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dcweather wrote:
.I'm still trying to figure the way of getting fairly sharp 400-450mm autofocus for under £800.
Sigma 150-500?
.I'm still trying to figure the way of getting fairly sharp 400-450mm autofocus for under £800.
Tim
AF - Pentax K5, Sigma 10-20/4-5.6, Tamron 17-50/2.8, Sigma 30/1.4, Sigma 70-200/2.8, Tamron 70-300/4-5.6
MF - Vivitar CF 28/2.8, Tamron AD2 90/2.5, MTO 1000/11
Stuff - Metz 58 AF1, Cactus v4, Nikon SB24, Raynox 150, Sigma 1.4x TC, Sigma 2x TC, Kenko 2x macro TC, Redsnapper 283 tripod, iMac 27”, Macbook Pro 17”, iPad, iPhone 3G
Flickr • Fluidr • PPG • Street • Portfolio site
Feel free to edit any of my posted photos! If I post a photo for critique, I want brutal honesty. If you don't like it, please say so and tell me why!
AF - Pentax K5, Sigma 10-20/4-5.6, Tamron 17-50/2.8, Sigma 30/1.4, Sigma 70-200/2.8, Tamron 70-300/4-5.6
MF - Vivitar CF 28/2.8, Tamron AD2 90/2.5, MTO 1000/11
Stuff - Metz 58 AF1, Cactus v4, Nikon SB24, Raynox 150, Sigma 1.4x TC, Sigma 2x TC, Kenko 2x macro TC, Redsnapper 283 tripod, iMac 27”, Macbook Pro 17”, iPad, iPhone 3G
Flickr • Fluidr • PPG • Street • Portfolio site
Feel free to edit any of my posted photos! If I post a photo for critique, I want brutal honesty. If you don't like it, please say so and tell me why!
Posted 02/02/2011 - 22:13
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dcweather wrote:
Kenko 1.5 PFZ allows autofocus on non-SDM lenses and is ok value wise.
They don't make them any more, I think, but if you can get hold of a one marked Pz-AF SHQ it will auto focus on SDM only lenses.
Kenko 1.5 PFZ allows autofocus on non-SDM lenses and is ok value wise.
Barrie - Too Old To Die Young
https://pentaxphotogallery.com/artists/barrieforbes
https://www.flickr.com/photos/189482630@N03/
https://pentaxphotogallery.com/artists/barrieforbes
https://www.flickr.com/photos/189482630@N03/
Posted 02/02/2011 - 22:30
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I have the Tamron 1.4 Pz AF MC4. AF is not too bad on non SDM lenses. It does try to AF with an SDM lens but only succeeds one in about four times and that is with a static subject.
Posted 02/02/2011 - 23:49
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hi
just found this
http://cgi.ebay.co.uk/Kenko-1-5X-Pz-AF-Teleplus-SHQ-teleconverter-Pentax-/110614...
neil
just found this
http://cgi.ebay.co.uk/Kenko-1-5X-Pz-AF-Teleplus-SHQ-teleconverter-Pentax-/110614...
neil
cheers Neil
pentax k3
DA* 300 f4 DA* 50-135 f 2.8 smc DA* 16-50 f2.8 50mm f1.7 pentax1.4xhd converter
Panasonic Dmc Fz200
pentax k3
DA* 300 f4 DA* 50-135 f 2.8 smc DA* 16-50 f2.8 50mm f1.7 pentax1.4xhd converter
Panasonic Dmc Fz200
Posted 03/02/2011 - 00:09
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Thanks all, so far. I keep coming back to same conclusions. The Sigma 150-500mm or the Pentax 300mm DA* with 1.5x teleconverter. I know the price has gone just above what I said for the latter but the advantage would probably be better IQ at 300mm.
gtis - I already have the Kenko 1.5 Pz-AF but it doesn't have SHQ on it. However comparing it with that picture it appears identical with the same contacts. SO will it autofocus with the DA* and non-SDM as well? I suppose the best thing would be to go to SRS and try out the combos.
Thanks,
Dave
gtis - I already have the Kenko 1.5 Pz-AF but it doesn't have SHQ on it. However comparing it with that picture it appears identical with the same contacts. SO will it autofocus with the DA* and non-SDM as well? I suppose the best thing would be to go to SRS and try out the combos.
Thanks,
Dave
Posted 03/02/2011 - 09:23
Link
dcweather wrote:
I already have the Kenko 1.5 Pz-AF but it doesn't have SHQ on it. However comparing it with that picture it appears identical with the same contacts. SO will it autofocus with the DA* and non-SDM as well?
No. The non SHQ versions have the external contacts but they are not connected up inside the converter.
I already have the Kenko 1.5 Pz-AF but it doesn't have SHQ on it. However comparing it with that picture it appears identical with the same contacts. SO will it autofocus with the DA* and non-SDM as well?
Barrie - Too Old To Die Young
https://pentaxphotogallery.com/artists/barrieforbes
https://www.flickr.com/photos/189482630@N03/
https://pentaxphotogallery.com/artists/barrieforbes
https://www.flickr.com/photos/189482630@N03/
Posted 03/02/2011 - 16:48
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Thanks Barrie.
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1204 posts
16 years
Laindon,Essex
So far I have gleaned that:-
Pentax 1.7TC converts some fast manual lenses to autofocus but is expensive and difficult to get hold of.
Kenko 1.5 PFZ allows autofocus on non-SDM lenses and is ok value wise.
Tamron 1.4 is pricey and difficult to find but does allow autofocus on SDM?
Sigma - best used with Sigma lenses?
I'm not sure about other Pentax teleconverters.
I'm still trying to figure the way of getting fairly sharp 400-450mm autofocus for under £800.