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09-09-2016, 04:37 PM   #1
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boats with a zoom an teleconverters.

I just like my teleconverterts. I get extra reach and do some "because I cans". a day at the marina with my 645D, my 80-160mm a, and my 1.4 and 2.0 stacked together.

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09-09-2016, 05:36 PM   #2
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Some work better than others. I received a Chinon 2x screw mount in a package I bought on eBay. Works great with my 300smc Takumar. Virtually no loss in resolution at all. Too bad the Tak has so much CA.
09-09-2016, 05:41 PM   #3
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Unrelated, but I do like that octopus on the roof

The stacked TCs to seem to introduce a bit of haze and exaggerate CA.

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09-10-2016, 07:04 AM   #4
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I've had a few TCs over the years, but never used them a lot. Most were 2Xers, but there was also once a 3X. The only times I wanted to use the 3x, the loss of light was so great I had very little confidence about getting a decent picture. Mostly it just stayed at home in a drawer.

There were a few times I used the 2Xes, just to get a shot that I couldn't have gotten otherwise. There was some image degradation, but not bad considering that they were cheap TCs, and nothing like the high-end "matched multipliers" that were just starting to be offered around that time. Still, even with the 2Xes, I resented losing that much light.

Lately, I've been thinking of teleconverters as more of a close-focusing aid than as something to give greater telephoto length to another lens--as a way to increase the magnification at closest focal distance to a lens without much close-focusing ability. Also, I've finally acquired a 1.5x, and I expect to give it much more use, since it gobbles up much less light.

But, as for others with TCs, I say, "go for it!" -- if you can get good results with the TCs you have, or can get get pictures you want that would otherwise be impossible for you by using TCs, then that's great. To their credit, they are one of those small, light-weight accessories, that can add, at times, something extra to a favorite (d)slr + favorite "walk-around lens."

---------- Post added 09-10-16 at 09:22 AM ----------

As for Bull Drinkwater's pictures, I wonder how they might look converted to Black & White. Some loss of sharpness might look more like a Tri-Xie grainy effect, and any PF would be hidden. The third picture, with its signage, and perhaps more gritty "documentary" material to its imagery, might benefit from that, but it might be worth experimenting to see if it made any of the other TC pictures look better, too. Viewers have different expectations for pictures that look as if they were intended to be printed in B&W on the pages of a news, sports, outdoors, or scandal paper. Hmm? Maybe I have to try that with a stack of TCs on my K10D, which people tell me can get an interesting grainy effect when shot at high ISOs.

09-10-2016, 03:48 PM   #5
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QuoteOriginally posted by goatsNdonkey Quote
I've had a few TCs over the years, but never used them a lot. Most were 2Xers, but there was also once a 3X. The only times I wanted to use the 3x, the loss of light was so great I had very little confidence about getting a decent picture. Mostly it just stayed at home in a drawer.

There were a few times I used the 2Xes, just to get a shot that I couldn't have gotten otherwise. There was some image degradation, but not bad considering that they were cheap TCs, and nothing like the high-end "matched multipliers" that were just starting to be offered around that time. Still, even with the 2Xes, I resented losing that much light.

Lately, I've been thinking of teleconverters as more of a close-focusing aid than as something to give greater telephoto length to another lens--as a way to increase the magnification at closest focal distance to a lens without much close-focusing ability. Also, I've finally acquired a 1.5x, and I expect to give it much more use, since it gobbles up much less light.

But, as for others with TCs, I say, "go for it!" -- if you can get good results with the TCs you have, or can get get pictures you want that would otherwise be impossible for you by using TCs, then that's great. To their credit, they are one of those small, light-weight accessories, that can add, at times, something extra to a favorite (d)slr + favorite "walk-around lens."

---------- Post added 09-10-16 at 09:22 AM ----------

As for Bull Drinkwater's pictures, I wonder how they might look converted to Black & White. Some loss of sharpness might look more like a Tri-Xie grainy effect, and any PF would be hidden. The third picture, with its signage, and perhaps more gritty "documentary" material to its imagery, might benefit from that, but it might be worth experimenting to see if it made any of the other TC pictures look better, too. Viewers have different expectations for pictures that look as if they were intended to be printed in B&W on the pages of a news, sports, outdoors, or scandal paper. Hmm? Maybe I have to try that with a stack of TCs on my K10D, which people tell me can get an interesting grainy effect when shot at high ISOs.


interesting idea the b&w, mostly I go for the scene as my artistic skills fall short. since this is a pentax forum, I've limited my post the 645d, I've never looked to see if other brands are mentioned here.
09-10-2016, 06:37 PM   #6
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QuoteOriginally posted by bull drinkwater Quote
interesting idea the b&w, mostly I go for the scene as my artistic skills fall short. since this is a pentax forum, I've limited my post the 645d, I've never looked to see if other brands are mentioned here.
A lot of Pentax camera owners use non-Pentax lenses, as well as Pentax lenses, so there is a lot of discussion here about any Pentax compatible lenses. Non-Pentax cameras that are compatible with Pentax lenses, also get discussed, but to a lesser extent. In some of the more general photography discussions other brands sometimes are mentioned in passing.
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