Teleconverters -- can someone explain?

William Finnell · Mar 24, 2002

I have been reading a lot about teleconverters lately, a facet of digital photography I know little about. But, I have an Uzi and I am interested. Here's some questions. Who has some answers? Thanks.

1. I am assuming the converter goes in front of the lens, right? The reason I ask this fairly idiotic question is because my old 35mm converters went between the body and the lens, and that's obviously out of the question with the Uzi. Is anything else needed, like a telephoto lens?

2. If a teleconverter is a stand-alone item, why not use it instead of a more expensive telephoto lens. What do you lose in clarity using a converter. Are there converters than can do a good job.

3. Is vignetting a problem and how can it be addressed.

4. If they are stand-alone, what are some of the best for the Uzi.

5. Anyone know of a website that explains teleconverters as they are used on digicams?

So there you have it. A teleconverter dork is trying to become an educated user. Please help with my ascent from dorkdom.

Duane Goodman · Mar 24, 2002

Bill, look here http://www.cliffshade.com/dpfwiw/c-2000z/lenses/index.htm for some answers to your questions.

Bill Finnell said:
I have been reading a lot about teleconverters lately, a facet of
digital photography I know little about. But, I have an Uzi and I
am interested. Here's some questions. Who has some answers? Thanks.

1. I am assuming the converter goes in front of the lens, right?
The reason I ask this fairly idiotic question is because my old
35mm converters went between the body and the lens, and that's
obviously out of the question with the Uzi. Is anything else
needed, like a telephoto lens?

2. If a teleconverter is a stand-alone item, why not use it instead
of a more expensive telephoto lens. What do you lose in clarity
using a converter. Are there converters than can do a good job.

3. Is vignetting a problem and how can it be addressed.

4. If they are stand-alone, what are some of the best for the Uzi.

5. Anyone know of a website that explains teleconverters as they
are used on digicams?

So there you have it. A teleconverter dork is trying to become an
educated user. Please help with my ascent from dorkdom.

--Duane

Peter B. · Mar 24, 2002

I'm glad you asked because I just bought an UZi myself and I want to know everything about it.

I too have read alot about the b300 and other add on lenses but I'm not quite sure how the whole puzzle fits together. This way you can be the dork and I'll just be astute looking interested observer.
Peter

Bill Finnell said:
I have been reading a lot about teleconverters lately, a facet of
digital photography I know little about. But, I have an Uzi and I
am interested. Here's some questions. Who has some answers? Thanks.

1. I am assuming the converter goes in front of the lens, right?
The reason I ask this fairly idiotic question is because my old
35mm converters went between the body and the lens, and that's
obviously out of the question with the Uzi. Is anything else
needed, like a telephoto lens?

2. If a teleconverter is a stand-alone item, why not use it instead
of a more expensive telephoto lens. What do you lose in clarity
using a converter. Are there converters than can do a good job.

3. Is vignetting a problem and how can it be addressed.

4. If they are stand-alone, what are some of the best for the Uzi.

5. Anyone know of a website that explains teleconverters as they
are used on digicams?

So there you have it. A teleconverter dork is trying to become an
educated user. Please help with my ascent from dorkdom.

--www.pbase.com/optionguru'Wherever you go, there you are.' Buckaroo Banzai

Daniella68313 · Mar 24, 2002

Bill Finnell said:
1. I am assuming the converter goes in front of the lens, right?
The reason I ask this fairly idiotic question is because my old
35mm converters went between the body and the lens, and that's
obviously out of the question with the Uzi. Is anything else
needed, like a telephoto lens?

Yes it goes in front of the lens, usually you will need a stepup ring from 49mm-52mm or 49m-55mm. Don't go with anything smaller in thread or you may endup with bad vigneting.

William Finnell said:
2. If a teleconverter is a stand-alone item, why not use it instead
of a more expensive telephoto lens. What do you lose in clarity
using a converter. Are there converters than can do a good job.

I think for the c2100 the B300 1.7x is a good choice with not too much vigneting. The Tcon14B 1.45x is also a good choice. A200 and some other canon tele, but i would stick with the Olympus models and avoid anything from Kenko or other brands. The Olympus Tcon14 1.45x is 46mm but i think its very bright and does not produce vigneting on the c2100 at full zoom and its quite cheap, around 50$. its the same as the tcon14B but the 14B has 52mm lens thread and give you a bit more zoom range.

William Finnell said:
3. Is vignetting a problem and how can it be addressed.

Take a look here to see how each tele produce vigneting or not at full zoom:

http://www.dpreview.com/forums/read.asp?forum=1008&message=1929979

William Finnell said:
4. If they are stand-alone, what are some of the best for the Uzi.

definitly the B300 but rare and expensive, it is around 200$ on ebay.com

http://users.orofino-id.com/mcelhatton/default.htm

The Tcon14b at 159$ on ebay.com 1.45x

A200 from 79$ at focuscamera.com i think.

William Finnell said:
5. Anyone know of a website that explains teleconverters as they
are used on digicams?

this is also an interesting thread to read:

http://www.dpreview.com/forums/read.asp?forum=1008&message=2237309

an interesting and informative site:

http://www.cliffshade.com/dpfwiw/c-2000z/lenses/index.htm

here is some nice gallery with different samples:

http://www.fototime.com/ftweb/bin/ft.dll/pictures?userid= {2EF17651-2565-41C9-8CA7-302B3086CB4E}&albumid={EDB2C558-3185-474D-AF6A-4E5755474AF1}

http://www.kansasfotos.com/test/test.htm

http://www.dpreview.com/forums/read.asp?forum=1008&message=1880801

and finally, some of my personal experiment with different teleconverters:

http://www.pbase.com/c700/teleconverter
http://www.pbase.com/c700/teleconverters_test
http://www.pbase.com/c700/raynox_2x_teleconverter
http://www.pbase.com/c700/kenko_2x_tests

I own the Tcon14 and with it i can have a very good zoom range, starting from 17mm to 58mm out of 5.9mm-58mm.

I just recently bought an Olympus c210 and its quite powerfull at true 1.9x but it produce slight vigneting even at full zoom with my c700 45.6mm lens.
Although it is not noticable in all photos.

William Finnell said:
So there you have it. A teleconverter dork is trying to become an
educated user. Please help with my ascent from dorkdom.

Hope this help

--Daniella http://www.pbase.com/zylenC7OO discussion group: http://www.homepet.com/cgi-bin/c700/UltraBoard.cgi

'UZ'pShoot'ERS' · Mar 24, 2002

Bill Finnell said:
I have been reading a lot about teleconverters lately, a facet of
digital photography I know little about. But, I have an Uzi and I
am interested. Here's some questions. Who has some answers? Thanks.

1. I am assuming the converter goes in front of the lens, right?
The reason I ask this fairly idiotic question is because my old
35mm converters went between the body and the lens, and that's
obviously out of the question with the Uzi.

You asked & you answered.

William Finnell said:
Is anything else
needed, like a telephoto lens?

Most of the Oly Teles are converters attached to the existing Uzi 49mm lens threads.Some only require a 49- whatever the converter thread is Step-up ring.

William Finnell said:
2. If a teleconverter is a stand-alone item, why not use it instead
of a more expensive telephoto lens. What do you lose in clarity
using a converter. Are there converters than can do a good job.

I'm not sure I follow this question fully but suffice it to say. There's very little sharpness or light loss with most of the Oly converters. Most of the non- Oly converters are terrible, although there are one or two that aint bad, The B-300 which I have is all metal & glass & bigger & heavier than most of the others. It looks like this on the Uzi

you do need a 49mm-55mm stepup ring for the B-300. the B-300 is getting more difficult to find every day but you can try the guy I got mine from [email protected] He's Martin in Germany but has the best price $152 includes shipping but may take several weeks to get to you. give him $200 & it'll be UPS'd to you in a week instead of slow snail mail I chose. The step up is readily available in most Camera shops for less then the $10 that Martin in Germany or Mike in Idaho are charging for the ones they ship with thier B-300. I don't have the link to Mikes page & you may also find the B-300 on ebay but usually for more than $150.

William Finnell said:
3. Is vignetting a problem and how can it be addressed.

There's no vignetting at the tightest zoom setting of the Uzi with the B-300/1.7x & I think the C-180/1.45x. The C-180 may have slightly more zoom adjustability. There's also a c-210/2x that has vignetting throughout the Uzi's zoom range & seems to be preffered for moonshots.

William Finnell said:
4. If they are stand-alone, what are some of the best for the Uzi.

From what I've seen & a few others I've tried. The B-300 seems to be the best. I've yet to have read a bad thing about it. But any of the Oly lenses seem to be pretty close.

William Finnell said:
5. Anyone know of a website that explains teleconverters as they
are used on digicams?

No need. Take my word for it. Screw the B-300 on to your Uzi, Zoom to maximum optical zoom & fire away like there's nothing addition on the Uzi...It's as seemless as a UV filter, In any mode including "P", Macro or any of the metering & focus modes. I mainly use "P" or "A" in "Spot focus", metered to taste & + - EV to taste. Here's a gallery I shot exclusively with the B-300. Many shots in Macro mode, with both my Uzi & Ezi (e100rs).
http://www.pbase.com/rrawzz/justanotherflockingbirdgallery

William Finnell said:
So there you have it. A teleconverter dork is trying to become an
educated user. Please help with my ascent from dorkdom.

--'Happy Shootin' !!!'UZ'P'Shoot'ERS' http://www.pbase.com/rrawzz http://www.pbase.com/otfgallery/uzpshooterMe & My UZI, Strollin Down The Avenue. Me & My UZI, Focusin On Somethin New. To 'UZe' Or Not To 'UZe'? That 'IS' The Question. Weather It 'IS' Nobler To Suffer Natures Outrageous Slings & Arrows? Or Go With Adobe? That's My Story & I'm Stickin To It. Take It Or Leave It c2100uz/e100rs (in that order)

William Finnell · Mar 24, 2002

You have answered everything I could have ever wanted to have answered. Now I have to find one I can live with. If the B300 is available, it will probably be the one, or something like it. Thanks again. I am learning.

Daniella68313 · Mar 24, 2002

'UZ'pShoot'ERS' said:
'UZ'pShoot'ERS' said:

3. Is vignetting a problem and how can it be addressed.

Click to expand...

There's no vignetting at the tightest zoom setting of the Uzi with
the B-300/1.7x & I think the C-180/1.45x. The C-180 may have
slightly more zoom adjustability. There's also a c-210/2x that has
vignetting throughout the Uzi's zoom range & seems to be preffered
for moonshots.

There is quite a bit of vigneting with the c180, and its only usable at full zoom. Even at full zoom there is still some vigneting. The c180 does not have any zoom adjustability. The c180 is the same mm as the c210 (52mm), juts a bit less powerfull and give a bit more vigneting but not much more.

--Daniella http://www.pbase.com/zylenC7OO discussion group: http://www.homepet.com/cgi-bin/c700/UltraBoard.cgi

Kim R · Mar 25, 2002

I do not know if all his lenses have been spoken for. I do know he is shipping some tommorow. he isan upfront guy.
I know one fellow that I gave address to last week will have his this next week.
check it out - I love my B300s (have two)
http://users.orofino-id.com/mcelhatton/

Bill Finnell said:
I have been reading a lot about teleconverters lately, a facet of
digital photography I know little about. But, I have an Uzi and I
am interested. Here's some questions. Who has some answers? Thanks.

1. I am assuming the converter goes in front of the lens, right?
The reason I ask this fairly idiotic question is because my old
35mm converters went between the body and the lens, and that's
obviously out of the question with the Uzi. Is anything else
needed, like a telephoto lens?

2. If a teleconverter is a stand-alone item, why not use it instead
of a more expensive telephoto lens. What do you lose in clarity
using a converter. Are there converters than can do a good job.

3. Is vignetting a problem and how can it be addressed.

4. If they are stand-alone, what are some of the best for the Uzi.

5. Anyone know of a website that explains teleconverters as they
are used on digicams?

So there you have it. A teleconverter dork is trying to become an
educated user. Please help with my ascent from dorkdom.

--'Will it ever be noticed by a man galloping by on a white horse?'Kim

'UZ'pShoot'ERS' · Mar 25, 2002

Yep, Sorry, I somehow get them mixed up, I was actually thinking of the A-200 which I think is close in magnification but smaller & 49mm and has the better zoom adjustability...I shoulda kept it as general as possible & stuck with just the specifics of the B-300, the one I have...LOL....I knew there'd be someone around to correct me.

Daniella said:
'UZ'pShoot'ERS' said:

Daniella68313 said:

3. Is vignetting a problem and how can it be addressed.

Click to expand...

There's no vignetting at the tightest zoom setting of the Uzi with
the B-300/1.7x & I think the C-180/1.45x. The C-180 may have
slightly more zoom adjustability. There's also a c-210/2x that has
vignetting throughout the Uzi's zoom range & seems to be preffered
for moonshots.

Click to expand...

There is quite a bit of vigneting with the c180, and its only
usable at full zoom. Even at full zoom there is still some
vigneting. The c180 does not have any zoom adjustability. The
c180 is the same mm as the c210 (52mm), juts a bit less powerfull
and give a bit more vigneting but not much more.

--
Daniella
http://www.pbase.com/zylen
C7OO discussion group:
http://www.homepet.com/cgi-bin/c700/UltraBoard.cgi

--'Happy Shootin' !!!'UZ'P'Shoot'ERS' http://www.pbase.com/rrawzz http://www.pbase.com/otfgallery/uzpshooterMe & My UZI, Strollin Down The Avenue. Me & My UZI, Focusin On Somethin New. To 'UZe' Or Not To 'UZe'? That 'IS' The Question. Weather It 'IS' Nobler To Suffer Natures Outrageous Slings & Arrows? Or Go With Adobe? That's My Story & I'm Stickin To It. Take It Or Leave It c2100uz/e100rs (in that order)

Mike HB · Mar 25, 2002

How come nobody has mentioned the EagleEye lens? Is it that the consensus is that it is way down the list of possibles for the uzi?

Argyle Monkey · Mar 25, 2002

Michael H Benton said:
How come nobody has mentioned the EagleEye lens? Is it that the
consensus is that it is way down the list of possibles for the uzi?

The EagleEye lens is a little too much for the UZI. The sample pics that I've seen are not sharp at all.-- http://www.pbase.com/argylemonkey

Smoke24 · Mar 25, 2002

It does seem that the Eagle Eye doesn't work very well with the UZI or the RS from what those that have tried it say. It does seem to do alright with the C-X0X0 cameras, I would guess due to their smaller lens size since the EE is only 37mm. It might be interesting to see the result of it on the C-700 since it also has the smaller lens but 10X too. It would be nice to be able to get 50X by adding just one converter but so far it doesn't look possible with the UZI or RS.
--www.pbase.com/smoke24/galleries

Daniella68313 · Mar 25, 2002

i think its 37mm. I have read that it has lots of vigneting. the diameter of the lens is very important to avoid vigneting at full zoom.

Michael H Benton said:
How come nobody has mentioned the EagleEye lens? Is it that the
consensus is that it is way down the list of possibles for the uzi?

--Daniella http://www.pbase.com/zylenC7OO discussion group: http://www.homepet.com/cgi-bin/c700/UltraBoard.cgi

Daniella68313 · Mar 25, 2002

It will not work with the c700 as well, the c700 is 45.6mm and putting a 37mm will not work. It only work well with small lens like Nikon coolpix 990 etc.

I get a bit of vigneting with the Olympus c210 1.9x. Not as much as on the c2100 but i still have a little bit.

the eagle eye with the cx0x0 will cause bad vigneting because of the 3x zoom is not enough to bypass the vigneting area. They need to use the digital zoom to get rid of the horrible vigneting.

Smoke24 said:
It does seem that the Eagle Eye doesn't work very well with the UZI
or the RS from what those that have tried it say. It does seem to
do alright with the C-X0X0 cameras, I would guess due to their
smaller lens size since the EE is only 37mm. It might be
interesting to see the result of it on the C-700 since it also has
the smaller lens but 10X too. It would be nice to be able to get
50X by adding just one converter but so far it doesn't look
possible with the UZI or RS.

--
http://www.pbase.com/smoke24/galleries

--Daniella http://www.pbase.com/zylenC7OO discussion group: http://www.homepet.com/cgi-bin/c700/UltraBoard.cgi

Bruce P. · Mar 25, 2002

I have the EE and yes it does not seem to work well with the UZI but it does work well with my 3040z. There is no vigneting at full zoom with good light.

Daniella said:
I get a bit of vigneting with the Olympus c210 1.9x. Not as much
as on the c2100 but i still have a little bit.

the eagle eye with the cx0x0 will cause bad vigneting because of
the 3x zoom is not enough to bypass the vigneting area. They need
to use the digital zoom to get rid of the horrible vigneting.

Smoke24 said:

It does seem that the Eagle Eye doesn't work very well with the UZI
or the RS from what those that have tried it say. It does seem to
do alright with the C-X0X0 cameras, I would guess due to their
smaller lens size since the EE is only 37mm. It might be
interesting to see the result of it on the C-700 since it also has
the smaller lens but 10X too. It would be nice to be able to get
50X by adding just one converter but so far it doesn't look
possible with the UZI or RS.

--
http://www.pbase.com/smoke24/galleries

Click to expand...

--
Daniella
http://www.pbase.com/zylen
C7OO discussion group:
http://www.homepet.com/cgi-bin/c700/UltraBoard.cgi

--Bruce P.c3040c2100uz

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Teleconverters -- can someone explain?

William Finnell

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Daniella68313

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'UZ'pShoot'ERS'

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William Finnell

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Daniella68313

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Kim R

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'UZ'pShoot'ERS'

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