Why the aversion of front mounted TCs? They are better.

[Rod K]

I hope that all those who get in a lather about attaching a UV or protective filter to the front of their lenses aren't reading this thread. A front mounted TC that boosts my telephoto by a factor of X amount, while taking it from f2.8 to f1.8 with no loss of IQ ? Yes please! Jurgen, you once told me to watch more star trek, I think some watch too much!

 

[Jurgen Larssson]

I hope that all those who get in a lather about attaching a UV or
protective filter to the front of their lenses aren't reading this
thread. A front mounted TC that boosts my telephoto by a factor of
X amount, while taking it from f2.8 to f1.8 with no loss of IQ ?
Yes please! Jurgen, you once told me to watch more star trek, I
think some watch too much!

 

[Daniella68313]

no samples.. the quality of this was so bad that none were keepers.

lots of CA, soft corners.

In comparison to my Tamron 1.4c, the Tcon 17 is just plain
horrible. I still have it but would not use that on a coke bottle.

--



http://www.pbase.com/zylen
'Never argue with an idiot, they drag you down to their level and
beat you with experience'

--



http://www.pbase.com/zylen

'Never argue with an idiot, they drag you down to their level and beat you with experience'

 

[Lee Jay]

You seem to think you can increase focal length, maintain f-stop and not increase aperture. That's wrong.

--
Lee Jay
(see profile for equipment)

 

[Rod K]

Ah, I rest my case. Incidentally, congrats on choosing VHS over Betamax!

 

[Jurgen Larssson]

You seem to think you can increase focal length, maintain f-stop
and not increase aperture. That's wrong.

--
Lee Jay
(see profile for equipment)

 

[Jurgen Larssson]

lots of CA, soft corners.

In comparison to my Tamron 1.4c, the Tcon 17 is just plain
horrible. I still have it but would not use that on a coke bottle.

--



http://www.pbase.com/zylen
'Never argue with an idiot, they drag you down to their level and
beat you with experience'

--



http://www.pbase.com/zylen
'Never argue with an idiot, they drag you down to their level and
beat you with experience'

 

[Jurgen Larssson]

lots of CA, soft corners.

In comparison to my Tamron 1.4c, the Tcon 17 is just plain
horrible. I still have it but would not use that on a coke bottle.

--



http://www.pbase.com/zylen
'Never argue with an idiot, they drag you down to their level and
beat you with experience'

--



http://www.pbase.com/zylen
'Never argue with an idiot, they drag you down to their level and
beat you with experience'

 

[Roger Krueger]

...you weren't taping Next Gen, were you? (ewwwww!)

Babylon 5 was head-and-shoulders better than all of the shiny-happy-plastic-world later Treks. Yeah, Patrick Stewart was an impressive Captain, but most of the stories were as limp as week-old lettuce.

 

[Roger Krueger]

I hope that all those who get in a lather about attaching a UV or
protective filter to the front of their lenses aren't reading this
thread. A front mounted TC that boosts my telephoto by a factor of
X amount, while taking it from f2.8 to f1.8 with no loss of IQ ?
Yes please! Jurgen, you once told me to watch more star trek, I
think some watch too much!

I don't think anyone has said you could get a faster aperture with a front converter. That'd require a back converter, some pretty special physical circumstances, and would probably give seriously impaired image quality.

I don't think we've even had too many people claim a vanilla front converter doesn't lose IQ. There's some debate as to how much, but nobody saying "none".

 

[Rod K]

Roger, if you check the OP, you will find "in theory you could make a 70/2002.8 IS into a 70/200 1.8 IS using a front mounted TC just gathering more light" I want one of those!!!!

 

[Lee Jay]

http://forums.dpreview.com/forums/read.asp?forum=1029&message=21556907
--
Lee Jay
(see profile for equipment)

 

[Daniella68313]

go ahead...

post some 100% crop with that thing wide open.

I do not have that TC any longer. I now use rear TC.

lots of CA, soft corners.

In comparison to my Tamron 1.4c, the Tcon 17 is just plain
horrible. I still have it but would not use that on a coke bottle.

--



http://www.pbase.com/zylen
'Never argue with an idiot, they drag you down to their level and
beat you with experience'

--



http://www.pbase.com/zylen
'Never argue with an idiot, they drag you down to their level and
beat you with experience'

--



http://www.pbase.com/zylen

'Never argue with an idiot, they drag you down to their level and beat you with experience'

 

[Daniella68313]

Yes they are popular for compact cams. Not too expensive either,
though they suffer mightily in the quality of image they produce.
I use to use one on my old Olympus. Great for what it did, but IQ
wise, horrible vignetting, very soft, dramatic fringing...

--



http://www.pbase.com/zylen

'Never argue with an idiot, they drag you down to their level and beat you with experience'

 

[Jurgen Larssson]

post some 100% crop with that thing wide open.

I do not have that TC any longer. I now use rear TC.

lots of CA, soft corners.

In comparison to my Tamron 1.4c, the Tcon 17 is just plain
horrible. I still have it but would not use that on a coke bottle.

--



http://www.pbase.com/zylen
'Never argue with an idiot, they drag you down to their level and
beat you with experience'

--



http://www.pbase.com/zylen
'Never argue with an idiot, they drag you down to their level and
beat you with experience'

--



http://www.pbase.com/zylen
'Never argue with an idiot, they drag you down to their level and
beat you with experience'

 

[Jurgen Larssson]

...you weren't taping Next Gen, were you? (ewwwww!)

Babylon 5 was head-and-shoulders better than all of the
shiny-happy-plastic-world later Treks. Yeah, Patrick Stewart was an
impressive Captain, but most of the stories were as limp as
week-old lettuce.

 

[Jurgen Larssson]

...you weren't taping Next Gen, were you? (ewwwww!)

Babylon 5 was head-and-shoulders better than all of the
shiny-happy-plastic-world later Treks. Yeah, Patrick Stewart was an
impressive Captain, but most of the stories were as limp as
week-old lettuce.

 

[mdg]

so you were wrong. Someone else pointed out that you could increase incident light using wide converter, after I'd made my post.

Keep up ;-)

 

[Lee Jay]

...you weren't taping Next Gen, were you? (ewwwww!)

I think TnG was way better than TOC, in just about every way.

Babylon 5 was head-and-shoulders better than all of the
shiny-happy-plastic-world later Treks. Yeah, Patrick Stewart was an
impressive Captain, but most of the stories were as limp as
week-old lettuce.

B5 had the best long-term story by far. Some of the episodes were a bit weak, however, as was some of the acting and technical production. TnG had a very weak long-term story but I thought many of the episodes (but not all) were stronger than those of B5.

B5 was a one-shot and we're lucky they got to film all 5 seasons. It was a pleasure to watch when it was on 5 times a week, and in-order from start to finish.

--
Lee Jay
(see profile for equipment)

 

[Lee Jay]

I think TnG was way better than TOC, in just about every way.

"TOS", obviously.

--
Lee Jay
(see profile for equipment)