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Forum: Pentax Lenses Jul 28, 2007, 6:51 PM
Replies: 30
Views: 4,268
Posted By dwssas
PeterP-----Yes what I did was to max the zoom to...

PeterP-----Yes what I did was to max the zoom to 250mm on the Tamron 18-250. I then hand held the Oly 1.7 tele, which I used frequently on my Panny FZ-20. The results are as you see. I am not a...
Forum: Pentax Lenses Jul 28, 2007, 3:12 PM
Replies: 30
Views: 4,268
Posted By dwssas
And again

And again
Forum: Pentax Lenses Jul 28, 2007, 3:11 PM
Replies: 30
Views: 4,268
Posted By dwssas
Having trouble posting these.

Having trouble posting these.
Forum: Pentax Lenses Jul 28, 2007, 3:09 PM
Replies: 30
Views: 4,268
Posted By dwssas
and the other.

and the other.
Forum: Pentax Lenses Jul 28, 2007, 3:09 PM
Replies: 30
Views: 4,268
Posted By dwssas
Still trying to post examples. One at 250mm and...

Still trying to post examples. One at 250mm and the other at 250mm + the t-con 1.7
Forum: Pentax Lenses Jul 28, 2007, 2:52 PM
Replies: 30
Views: 4,268
Posted By dwssas
Trying again.

Trying again.
Forum: Pentax Lenses Jul 28, 2007, 2:50 PM
Replies: 30
Views: 4,268
Posted By dwssas
Just made a discovery. With the K100d plus a...

Just made a discovery. With the K100d plus a 18-250 tamron, I hand held an Olympus 1.7 tele on front of the 18-250. The auto focus worked perfectly. If I can find a step down 62-55 ring I think I may...
Forum: Pentax Lenses Jul 28, 2007, 6:52 AM
Replies: 30
Views: 4,268
Posted By dwssas
snowstorm=robar----you are correct. I forgot to...

snowstorm=robar----you are correct. I forgot to mention that they also said this tc could be used but would not autofocus. Only manual focus would be available but at least thats an option.
Forum: Pentax Lenses Jul 27, 2007, 8:41 PM
Replies: 30
Views: 4,268
Posted By dwssas
Found out throughout Camera Canada that the 1.4...

Found out throughout Camera Canada that the 1.4 tele made by Tamron only works with lens less than aperature 4.0. No other lens cuts it either. So far it does not appear that enhancment of the 18-250...
Forum: Pentax Lenses Jul 27, 2007, 7:34 AM
Replies: 30
Views: 4,268
Posted By dwssas
Thanks Phil, thats the info I needed.

Thanks Phil, thats the info I needed.
Forum: Pentax Lenses Jul 25, 2007, 8:00 PM
Replies: 30
Views: 4,268
Posted By dwssas
Roy---yup---thanks.

Roy---yup---thanks.
Forum: Pentax Lenses Jul 25, 2007, 5:41 AM
Replies: 30
Views: 4,268
Posted By dwssas
Robar-----thanks for the reply, I think. If the...

Robar-----thanks for the reply, I think. If the formula you posted means something, its way over my head.
Forum: Pentax Lenses Jul 24, 2007, 10:08 PM
Replies: 30
Views: 4,268
Posted By dwssas
Thanks for the reply Scott. I dont think it will...

Thanks for the reply Scott. I dont think it will work but was hopful. I havent seen any posts of it being done. Thanks again for your 2 cents.
Forum: Pentax Lenses Jul 24, 2007, 7:32 PM
Replies: 30
Views: 4,268
Posted By dwssas
Can a Sigma 1.4 teleconverter be used on the...

Can a Sigma 1.4 teleconverter be used on the Tamron 18-250 lens? Thanks in advance.
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