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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Sigma lens with Sigma teleconverter or Canon teleconverter

I am in need of a longer focal length and I can't currently buy a +400mm lens so I have decided to purchase an extender/teleconverter for now. I have two lenses on which I will use the TC. The first ...
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Screw on teleconverter lens

I have a D5100 with a Sigma 50-200 but I also have a a 2x and 3x teleconverter lens. The problem is that the teleconverters are screw on. Is there an adapter for this?
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Can I use the EF 2x TC on an R6 with EF 70-200 mm F2.8?

I have a EF 70-200 F/2.8 IS lens and a canon 5D Mark IV. I'm planning to upgrade to an R6. I will sell the 5D. I will purchase the EF to RF adapter so that I can use the 70-200 mm lens and other EF ...
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Sony A7III travel/wildlife combo: 70-200mm f/4 + 2x teleconverter, or sigma 100-400mm f/5-6.3?

After taking my Sony A7III and Sony G 70-200 f/4 telephoto to a couple of hiking and camping trips, I'm looking forward to improve my equipment to get more into wildlife photography. So I need longer ...
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How do I calculate f/stop change for teleconverter that increases lens magnification?

I'm trying to calculate the f/stop change of attaching a x2 teleconverter to a 80mm f/2.8 lens. In this instance, the teleconverter attaches to the front of the lens, and has a larger opening than the ...
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Does the Sigma MC-11 adapter work with the Sigma Canon Teleconverter?

I'm currently looking for tele lenses for Sony E mount. I haven't settled on a camera body yet, but I'll probably get an a7c. One option would be the Sigma 100-400mm for Sony E. Though without a Sigma ...
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teleconverter for a Canon Powershot SX50 HS

I have a Canon Powershot SX50 HS camera and use it a lot for bird photography ( goes up to 200mm). Is it worth getting a X2 teleconverter lens or will the loss in image quality offset the ...
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Would a screw in 2x converter double the minimum focusing distance?

I want to shoot some very zoomed in shots, my current lens has a 28cm minimum focusing distance. I want to shoot from 35-40cm away but more zoomed in. Sort of macro, but from a distance. If I bought a ...
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Vintage lenses and teleconverter. Vintage TC native to lens or adapt lens to modern TC?

I own a fair amount of vintage lenses. Some of them I use on a crop body (a6000), with or without a focal reducer. I also use them adapted to full frame (a7). I love them on their native bodies, but ...
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How to combine an autofocus teleconverter with a manual-focus lens

I have a teleconverter (Bower MC 2x C/AFI) which has pins to connect the lens electronics to the camera body. It works well with my autofocus lenses. If I try to use the converter with a manual-focus ...
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Sigma 150-600mm + 1.4x TC

Am trying to get 1.4x extender for my Sigma 150-600 contemporary lens (canon Mount), would like to use it for wildlife / bird photography. Camera am using: 5D Mark III (placed order for R5 - waiting ...
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5 answers
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Options to increase magnification when the minimum working distance is fixed

I work in a lab which deals with a significant amount of scientific photography. My current situation calls for an increase in magnification, however, there is a physical limit to how close the lens ...
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Would a Canon EF 800 f/5.6 with a 2x extender on a Raspberry Pi camera work? (9024mm focal length, f/90.24)

The new raspberry pi high quality camera has a sensor size of 1/2.3", with a C-mount. If I attach a C-mount to Canon EF lens adapter, then a 2x extender, then the Canon EF 800mm f/5.6 L IS USM, from ...
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Would the Nikon TC14E II teleconverter work with a Tamron 70-200mm f/2.8?

I mostly do photography using Nikon gear. When it comes to video I use the Panasonic GH5 and adapt my Nikon lenses via adapter. The adapter does not have any electronics. So I'm stuck to manual focus (...
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Supertele: 400mm vs 600mm

Im about to get the Nikkor 400mm F/2.8 VR (not the FL one). This is a lens I always desired. I have already planned some tours through northern Europe and hope to gain some wildlife photography ...
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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 ...
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Can the MTO-11 mirror lens be extended to 2000mm using an extension tube

In this link https://www.dyxum.com/dforum/ayone-knows-the-mc-mto11ca-10-1000-telephoto-lens_topic12136.html A poster claims that the 1000mm mto-11 can be extended to 2000mm by removing a stop and ...
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2 answers
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Does the attachment order of Canon teleconverters and adapters matter?

Canon EOS RP manual says that the EF - EOS R adapter should be attached to the lens first, and only then should the entire assembly be attached to the camera. I have understood that the same is true ...
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Is there a speed booster which will let me use an FX lens on a DX camera with wider focal length and aperture?

Since we have teleconverters that increase the BFD (back focal distance) of a lens and magnify the image, would it be possible to design a teleconverter that decreases the magnification and therefore ...
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Which brand 1.4 Teleconverter ensures autofocus for Sigma 150-600mm C other than TC 1401 sigmas own

I have a Kenko tokina 1.4 teleconverter. When attached to 150-600mm C sigma lens and camera switched on, it shows Err01. However if the electrical contacts of the teleconverter are blocked with a tape ...
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2 answers
363 views

Can you turn a 60mm macro lens into a 100mm macro lens?

I have a Canon EF-S 60mm Macro lens. Can I add an extension tube or teleconverter to emulate a 100mm Macro? If not, is there a solution?
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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
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How will a teleconverter affect the sharpness of a lens at a given aperture?

If I have a 200mm f2.8 lens and apply a 2x teleconverter the effective focal length and aperture becomes 400mm and f5.6. However, I am unsure about the effect this has on other aspects, such as image ...
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Why do my pictures shot using a 1.4x extender look soft?

I have a Canon EF 1.4x III Extender attached to my Canon EF 100-400mm f/4.5-5.6 L IS II USM on my Canon EOS 7D MkII and I'm finding my pictures of distant subjects appear very soft, as if the lens is ...
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What is the point of converter lens settings in a camera?

My Sony DSC-H1 has a tube with 58mm threads for mounting converter lenses and/or filters. Among the lenses available from manufacturer itself are a 0.7x wide converter, an 1.7x tele converter, and a ...
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9 votes
3 answers
4k 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 ...
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3 votes
1 answer
3k views

How much does the Canon EF 1.4x III Extender affect image quality on an APS-C sensor?

To be more specific I am interested in buying the Canon EF 1.4x III Extender to use it on my Canon EF 70-200 f2.8L IS II USM mounted on my Canon 7D Mark II. I know that when using the extender the ...
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Are there adapters so I can use my lens converters on a Canon entry-level dSLR?

I have: Kenko Video Tele Converter KVC-20 II 2.0x XIT Elite series 3.7x AF telephoto lens Digital Optics Japan 0.45x Pro Definition with Macro lens Are there adapters for these which would fit my ...
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10 votes
2 answers
3k views

What is the blue halo around objects when using a teleconverter? [duplicate]

This afternoon, I went out to take some pictures using a ZEISS Tele-Tessar T 300mm f/4 Lens, with a Tamron x2 Teleconverter adapted to a Sony alpha 6000. Unfortunately, I have been noticing an ...
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1 vote
3 answers
6k views

How to calculate stops of light lost from a teleconverter?

How would I be able to take the multiplication value of a teleconverter (1.7, 1.4, 2, etc) and find out how many stops of light are lost when using it just based on that number?
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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 ...
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I have a telephoto lens made to screw on to another lens. Which one should I attach it to?

I have a prime lens, a zoom lens and a telephoto lens. My Telephoto lens is made to screw onto another lens. Should I attach it to the prime lens or does it matter?
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5 votes
2 answers
3k views

Will a lens extender be helpful for wildlife photography with a 70-200mm lens and APS-C sensor?

I was planning to do some photography with wildlife and was planning to sell my Canon Mrk2 70-200mm lens. However after discussing this I've been told that it's actually a good lens for wildlife (or ...
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Please suggest necessary setting for better sharp image with telephoto lens 70 -300mm VRF4.5-6.3? Nikon D5300 [duplicate]

Does the teleconverter support for sharp image specially for birding? Please suggest
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Is two teleconverters on a sigma 150-600 sharper than one on a 1100mm mirror lens?

I was considering taking photos of the moon and stumbled on a review of the MTO 1000a mirror lens. This is acording to this site a sovjet design from the eighties of an 1000mm mirror lens. (Some other ...
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What is the use of tele converter? Is it possible that it can be used for all lenses or only for the specific lens?

Actually I'm planning to buy multiple lens but my budget is little less I can't afford telephoto Lens so if I buy tele converter, is it possible that I can use it for all types of lens or only for ...
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1 vote
1 answer
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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 ...
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What teleconverter should I get for a T-mount telephoto with F-mount adapter?

I have a Nikon D5000 F-mount camera, and I just ordered a Bower 500mm T-mount telephoto with an F-mount adapter. I want to be able to slap on a 2X teleconverter, but I don't know how to tell which ...
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If I add a 2x telephoto adapter to a 18 - 55 mm 1:3.5 - 5.6 lens will portrait backgrounds go out of focus better?

I understand that I need a telephoto lens, combined with a low fstop to separate the subject in a portrait from the background, which will be out of focus. I'm confused if I add a macro/2x telephoto ...
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Is it possible to turn a Nikon 18-200mm lens to a macro lens?

I was wondering if I could turn my Nikon 18-200mm lens into a Macro zoom lens by adding either a teleconverter or a macro-converter?
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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 ...
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1 vote
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Which Teleconverter is best along with my Nikon AF-S DX Nikkor 18-105 mm F/3.5-5.6G ED VR Zoom Lens for Nikon-D7200?

I know very well that my lens is not a perfect lens for wildlife Photography at all, but still if i would like to know answers for below questions. Which Teleconverter should I use? How much focal ...
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3 votes
1 answer
1k views

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 ...
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3 answers
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Is it good to use VR lens with teleconverter?

I recently thinking to do something more for my photography experience. I want to buy a telephoto lens with a VR but it is expensive. That's why i am thinking that i should buy teleconverter instead ...
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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.
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Can I change aperture with a Nikon TC-200 2x teleconverter?

I'm using a 2X teleconverter with a Nikon 35mm 1.8 AF lens on my D7100. It looks like I can't change the aperture with any of the camera's dials. Am I missing something? The converter is a Nikon TC-...
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4 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 ...
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What specs do I look at to get a screw-on teleconverter that works with my V1 and adapted lens?

My camera is a Nikon V1 (1"-format sensor). I have a native Nikon 1 30-110mm lens, with Olympus C210 screw-on teleconverter, which works without vignetting from 60mm length onwards. This works because ...
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1 vote
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Does a teleconverter lose one stop of light from both ends of a variable aperture zoom?

If I add a Canon 1.4x III extender to my new EF 100-400mm f/4.5-5.6L lens, I believe I lose one stop of light. So what happens to the f/4.5-5.6 part? Does the f/5.6 part become f/8, for example, at ...
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Will this camera, lens and teleconverter combo work well?

My old Nikon D5000 finally bit the dust along with my grey market nikkor 70-300 lens. I am looking at replacing them both. The camera will be replaced by either the D5200 or D5300. The lens I am ...
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