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Questions tagged [teleconverter]

Optical devices used between camera and lens to magnify middle part of projected image, effectively turning the lens into a longer (but slower) one.

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Will the Canon 5D MK II with 100-400 1:4.5-5.6 work properly with Kenko 1.4 converter?

I'm using 5D MKII body and 100-400 f/4.5-5.6 lens. I want to use a 1.4 converter; will the Kenko converter work and autofocus properly?
Ruud's user avatar
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15 votes
4 answers
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Does using an extender actually change the aperture of the lens?

I just bought a Canon 2X extender and I always believed that it would only result in 2 stops' loss of light and not change the aperture. However, when I tested this extender on a Canon 135mm f/2 ...
Viv's user avatar
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10 votes
3 answers
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How to enable Canon AF with teleconverter?

Canon DSLR bodies prevent poor auto-focus performance by disabling it completely when the lens reports maximum aperture at chosen focal length smaller than f/5.6. This implies that some lenses will ...
Imre's user avatar
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Are there any Teleconverters/Extenders which will work with a Canon Rebel EOS T3 and 55-250mm f/4-5.6 lens?

Are there any Teleconverters or Extenders that will work on the Rebel EOS T3, I am currently using an EFS 55-250MM 1:4-5.6 IS II lens in an area where there is a variety of interesting wildlife that I ...
jharrit's user avatar
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22 votes
8 answers
14k views

How does a teleconverter affect depth of field?

I'm aware that a teleconverter will reduce the amount of light reaching the film or sensor in a camera, and as such you hear people banding around things like "With a 2x teleconverter this 300mm f/2.8 ...
Rowland Shaw's user avatar
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8 votes
7 answers
2k views

Which Canon prime and teleconverters should I bring to a safari?

Currently I have the 70-300mm L lens from Canon. I would like to go on a Safari trip, and was wondering, does it make sense to pick up the ...
Bill's user avatar
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2 votes
2 answers
15k views

How do I choose a teleconverter for my Tamron 70-200 f2.8 and Canon camera?

I have Canon EOS 650D and Tamron 70-200 f2.8 lens. I would like to buy a teleconverter (1.4x or 2.0x) to increase the zoom, e.g., for shooting wildlife and the moon. I took a look at several ...
Alex's user avatar
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11 votes
2 answers
583 views

Are there any downsides in using 2x extenders?

What are the negatives with using teleconverters?
txwikinger's user avatar
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11 votes
8 answers
6k views

For greater telephoto range, should I use 70-200mm + teleconverter or a longer zoom lens?

Right now, I have a Nikon 18-200mm f/3.5-f/5.6 VR lens. I like it, but want more telephoto range and would also like to be able to use faster shutter speeds. I am interested in the 70-200mm f/2.8, but ...
Josh Goldshlag's user avatar
3 votes
1 answer
29k views

What is a "2.2X Pro Telephoto" lens?

I am looking to enter the world of SLR cameras and learning some more about lenses. I came across a package that has a 2.2X pro Telephoto what exactly does that ...
L84's user avatar
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3 votes
1 answer
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How does a teleconvertor affect magnification ratio?

Here is my base: camera, lens with particular magnification ratio and teleconverter. I would like to understand if the magnification ratio will change if I use the teleconverter, compared to the ...
Romeo Ninov's user avatar
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1 vote
1 answer
1k views

Will a Sigma 1.4tc teleconverter work with my Canon 70D?

I have a Canon 70D body with Sigma 150-600 lens. I am thinking of buying Sigma's teleconverter 1.4tc but I dont know if it works in canon70D.
rabindra's user avatar
7 votes
2 answers
8k views

What are the differences between the Canon extenders?

My wife has a Canon EF 100-400 f4.5-5.6L IS USM Telephoto Zoom Lens. Price is not that important to me, but I am unsure which of the four extenders I should purchase. Canon has four extenders that I ...
Dennis's user avatar
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2 answers
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Why can only certain Canon lenses be fitted with an extender?

Is there a reason only certain lenses can be fitted with an extender? I'd really love to be able to fit the extender to some of my cheaper lenses.
Noel M's user avatar
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7 votes
2 answers
941 views

What are the drawbacks of an extender (wide or teleconverter)?

I'm asking a more general question, starting from a particular case with which I'm dealing these days: I'm considering buying a Wide Conversion Lens for my Panasonic HC-X900M camcorder (see the item ...
John Thomas's user avatar
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6 votes
4 answers
4k views

Will I not be able to AF with a 2× teleconverter?

My setup is a Canon EOS 600D with a Canon EF 70-200mm f/4 L (non-IS), and I really want to buy a 2× teleconverter (1.4× is too short). I have done a lot of research, but I can't wrap my head around ...
Tindra's user avatar
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6 votes
3 answers
2k views

Should I get a tele-converter or a camera body with more megapixels and crop?

My current camera body is a Nikon D300 and my longest lens is the Nikon 70-200 f2.8 vrII. I'm planning a trip to Africa and I am considering buying a 2.0x teleconverter to get bit more reach. But for ...
Rene's user avatar
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4 votes
3 answers
4k views

Does a full frame with a teleconverter perform better than an APS-C without a teleconverter?

Context Putting a teleconverter on a full frame lens magnifies the center of the lens but gives more reach due to that with some drawbacks. I've rediscovered focal reducers that do the opposite, ...
unsignedzero's user avatar
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3 votes
4 answers
13k views

Are Canon extenders compatible with non-Canon lenses?

I have two APS-C (70D and 600D) bodies with Canon EF and EF-s lenses, and Sigmas, among them the Sigma 70-200 f2.8 HSM OS. I am also considering getting the new Tamron 150-600 lens, pending reviews. ...
dassouki's user avatar
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1 vote
1 answer
1k views

Nikon Teleconverter compatibility

From the Nikon site, AF-S Teleconverter TC-14E II [but the same caveat is on all 3 Teleconverters] Compatible with AF-S and AF-I NIKKOR lenses except AF-S 17-35mm f/2.8D IF-ED, 24-85mm f/3.5-4.5G ...
Tetsujin's user avatar
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18 votes
3 answers
19k views

What is the difference between teleconverters and extension tubes?

I'm aware of two devices that can extend the reach of a lens: the teleconverter and the extension tubes. What else would they have in common, and where do they differ? Are there situations where one ...
Grant Palin's user avatar
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11 votes
3 answers
5k views

Sigma 150-600mm vs 300mm prime with extender?

Just wanted to get a few opinions since I'm a beginner. I recently purchased a Sigma 150-600mm lens, and I'm wondering if I made the wrong choice. I still have time to return or exchange. I'm ...
Lisa 951's user avatar
  • 111
6 votes
3 answers
4k views

Is replacing a 70-200mm Canon lens with a 135mm and extender a good idea?

In the Canon camp we are all very familiar with the range of 70-200mm lenses. I am very impressed by the 135mm f/2.0 L though. I am considering getting rid of my 70-200mm lens in favor of the 135mm ...
dpollitt's user avatar
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5 votes
2 answers
967 views

Is it a good idea to stack teleconverters to shoot at the moon?

Just got a Pentax ME Super in eBay and two lenses from a friend of mine. One of the two is a 200mm Shacht prime. I have also won on eBay, 10 minutes ago, a x3 teleconverter and I was thinking if I ...
Lamberto Pedrolla's user avatar
4 votes
3 answers
5k views

Canon extender 2x III with 70-200mm F4L vs 100-400mm F4.5-5.6L for wildlife shooting

Photography.SE, hello there, this is my first question, hence please pardon my inexperience of phrasing the question. I am about to go to Yosemite and Yellowstone for 3 weeks next month, and ...
user avatar
4 votes
2 answers
1k views

Is there something that is the opposite of a teleconverter?

I shoot a Nikon D80 that has a 1.5 crop factor. I'd like to find something like a .67x teleconverter so any full format lens I attach would then have their original focal length and would in theory be ...
user85350's user avatar
3 votes
1 answer
1k views

working distance in macro photography

I have Sigma 70-300mm and tamron 24-70mm lens. I want to capture dragonfly and butterflies. I am thinking to get either close-up lens (Raynox DCR 250) or extension tube (XIT Pro Series). But my ...
user1776410's user avatar
3 votes
4 answers
5k views

Can the Sigma TC-1401 1.4x Teleconverter be used with Canon lenses?

Essentially the inverse of this question - can a Sigma 1.4x Teleconverter (specifically the TC-1401) be used with (actual) Canon lenses, such as the EF 70-200mm f/4? By used, I mean does it mount (I ...
exterrestris's user avatar
2 votes
1 answer
634 views

What combination of camera, teleconverter, image stacking, or sharpness increase will best improve my moon photographs?

I'm trying to improve my moon shots. I'm currently shooting it with a Canon EF100-400mm f/4.5-5.6 USM lens mounted either on a Canon 450D or a ...
Andy M's user avatar
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2 votes
2 answers
2k views

Do third party extenders for Canon exist?

I was looking into extenders(Teleconverter) for Canon lenses, and they are quite expensive at around $450 for the 1.4x III or 2x III. I know that extension tubes are a different story, and since they ...
dpollitt's user avatar
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2 votes
2 answers
19k views

Can I use an Canon 2x Extender on my EF-S 18-135mm lens?

I want to get into taking more bird images, and am on a very limited budget. I am wondering if I can use the Canon 2x Extender on my Rebel T4i camera's EF-S 18-135 kit lens. If so what sort of price ...
Deborah's user avatar
  • 21
1 vote
4 answers
165 views

How to determine which lenses are good at testing teleconverter quality?

I have a Kenko 3x teleconverter and am getting generally soft images (using a Canon 5d Mark II on a tripod). I am trying to find out how much of this is due to the quality of the teleconverter and ...
lijat's user avatar
  • 1,591
0 votes
1 answer
309 views

Can the Sigma 2x teleconverter be hacked so it will work with the Sigma 50-500mm?

Does the autofocus hack (where you mask off connectors on the teleconverter to make it misreport the aperture) work on sigma 2x teleconverter fitted on Sigma 50-500mm DG lens for Canon cameras?
Tom's user avatar
  • 1
0 votes
3 answers
6k views

Can I expect good quality from a 2X TC on a Nikon 55-300mm lens?

I have a Nikon D3100 with the standard 18-55mm lens, and a Nikon 55-300mm lens. I bought a 2X teleconverter for the 55-300mm lens, but the TC seems to be unusable. At 300mm with the TC everything is ...
Ronnie's user avatar
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0 votes
1 answer
177 views

Can a canon AF fit 35 mm 2x teleconverter work with EOS 77D

I have an older Quantaray 2x teleconverter for a rebel 2000 film camera will it work with a new canon dslr 77D EOS
Lane's user avatar
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0 votes
2 answers
795 views

Can a focal reducer be used with a teleconverter?

Can you use a focal reducer with a teleconverter? I don't believe it would be possible to do it but, is it? If I were to use a full-frame 50mm lens on a 2x teleconverter with a 0.71x focal reducer ...
Joe Scotto's user avatar