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Tagged Questions

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

learn more… | top users | synonyms

1
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2answers
55 views

Nikon D3000 70-300 Nikon lens - How to get lens converter off the lens?

I put a Vivitar tele converter on my 70-300 lens. It went on easy but wont come off. How do I get the thing to come off my lens? I have a Nikon D3000 camera.
0
votes
2answers
615 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 ...
1
vote
2answers
80 views

Compability of Kenko DGX PR0300 2.0X C-AF F4.5 for Canon and a Canon 55-250mm lens

Can the Kenko DGX PR0300 2.0X C-AF F/4.5 Lens for Canon (Black) be used with a Canon 55-250mm lens?
1
vote
1answer
180 views

How can I set the aperture manually when using an old teleconverter on my Nikon D80?

I have a Nikon D80, and I use it with the Tamron 70-300 and an old 2x teleconverter. When I mount both of them on my camera in Manual mode, I can change the shutter speed but I can't set the aperture. ...
3
votes
2answers
113 views

What will be my aperture with a 2× teleconverter? [duplicate]

I have a Canon 60D (crop factor 1.6x) and an 85mm f1.8 prime lens. Now I want to add a 2x teleconverter and attach the 85mm lens to it. My question is: What will the effective aperture be?
1
vote
2answers
244 views

Can I use a FD lens + extender with Canon EOS mount?

I have a Sigma 400 mm FD lens which comes with an FD to EOS (EF) adapter. Is it possible for me to attach an extender to it. May be a 2X FD extender and then attach the FD to EOS (EF) adapter. Is ...
9
votes
2answers
3k views

How does using a 2x teleconverter with 70-200 f/2.8 affect use?

I recently acquired the Canon EF 70-200mm f/2.8L IS II USM lens and I love it. However the other weekend I went to Heathrow to do some aviation photography. Whilst it is great for aircraft near to ...
9
votes
2answers
521 views

When using an Extender, does it 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. When I tested this extender on a Canon 135mm F/2 lens, the ...
2
votes
1answer
475 views

Can I use Wide Angle Lens converter for my existing lens Nikkor 35mm f1.8?

I have a D3100 Nikon with a 35mm f1.8 prime lens. I want to buy a wide angle lens converter to make it more like a wide angle lens. What is your advice on that? How do I know whether the lens ...
2
votes
2answers
436 views

What are the true limitations of using the TC-17E II or TC-20E III on both telezoom and macro?

I am having a lot of trouble getting accurate and trustworthy information about the effect of convertors on the following setup: Nikon D800 Nikon AF-S 80-400mm F/4.5-5.6 ED VR Nikkor AF-S 105mm F2.8 ...
1
vote
3answers
923 views

Compatibility of Canon teleconverters 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. ...
2
votes
1answer
752 views

Can I build my own focal reducer by reversing a teleconverter?

Would it be feasible to reverse a 1.4x teleconverter's optics into a cross-system lens mount adapter & have it function as a focal reducer? For example, like this: Camera hacked adapter ...
0
votes
0answers
128 views

Is there a teleconverter to go between Sony Alpha A77 D and Tamron 70-200 f2.8 (with Sony mount)?

I'm struggling to figure out whether there's a teleconverter (available in the UK now) that will go between a Sony Alpha A77 and a Tamron lens. There seems to be some recommendations I could find, but ...
2
votes
1answer
143 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 ...
7
votes
2answers
197 views

Is it possible to attach two teleconverters serially?

Is it possible to get 4x focal length by attaching 2*2x teleconverters? How about a 1.4x to a 2x, for 2.8x total? I understand that the resulting lens would be slowed down proportionally as well. ...
2
votes
1answer
130 views

What are the caveats for buying a teleconverter that is of a different brand than the lens?

What are the caveats when choosing a teleconverter brand that is of a different brand than the lens it will be attached to in attempt to maximize image quality? Lets assume the following to make the ...
4
votes
3answers
435 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 ...
1
vote
4answers
722 views

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?
3
votes
2answers
227 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 ...
0
votes
3answers
2k 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 ...
4
votes
2answers
385 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 ...
3
votes
1answer
288 views

Are there any quality 1.7x teleconverters for Canon EF mount?

I am planning to buy a Canon EF 300mm f/2.8 L IS II soon, probably in the first half of next year. I plan for it to be my wildlife and birding lens, and with the 1.4x and 2x Mark III teleconverters ...
8
votes
5answers
610 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 Canon EF 400mm f/2.8L IS II with the 1.4X and 2X ...
8
votes
2answers
5k views

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 ...
7
votes
3answers
779 views

Co-linear dual tripod mount for huge lenses

I am about to buy a fun super-zoom mirror lens which is so long it has its own tripod mount. To protect the camera, I am wondering if there is a mount accessory which will allow for two items to be ...
3
votes
2answers
295 views

How do I manually focus my macro in poor lighting conditions?

I'm using my Canon 100mm f/2.8L macro handheld all the time together with a flash rig and it works wonders. Most of the time I have an Eg-S focusing screen installed as well which makes it even easier ...
3
votes
1answer
373 views

How can a teleconverter allow manual focus lenses to autofocus?

I've found that some discontinued teleconverters, such as the Pentax F 1.7x AF Adapter and Nikon TC16A, enable autofocus with manual focus lenses. How is this possible? Does this system have any ...
4
votes
3answers
2k 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 ...
5
votes
2answers
384 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 ...
4
votes
3answers
3k views

Do teleconverters work with Macro lenses?

I read that teleconverters don't work with macro lenses. Is that true, and if yes, why? I have the Canon 100mm f/2.8L macro lens, and I felt that purchasing a 2x teleconverter would be a cheap way of ...
3
votes
1answer
4k 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 mean and how does it work? (Please ...
1
vote
1answer
347 views

Is it okay to use a T-Con 1.7 Teleconverter with a Nikon D3100 via a step-up ring?

I've recently bought a Nikon D3100 with 18-55mm kit lens. I already have an Olympus T-Con 1.7x teleconverter and would like to connect it to the kit lens with a step up ring. My concern is that the ...
0
votes
1answer
410 views

Can anyone recommend a telephoto lens for a Sony DSC-H3?

I have a Sony DSC-H3. I'd like to buy some new lenses for it for experimentation purposes. Specifically, I'd like to get a telephoto lens. The only issue is, I can't figure out which one to get. The ...
4
votes
1answer
569 views

Do you suggest using an extender/tele converter with a Macro lens such as Canon 100mm f2.8 macro lens?

Do you suggest using a teleconverter with a dedicated macro lens? I have tried out using a Kenko TC with canon macro lens - however I am not 100% satisfied with the "extra" magnification that I got on ...
3
votes
2answers
3k views

Can a Teleconverter be used to extend a Sigma 70-300mm f/4-5.6 lens?

I have a Nikon D3100, a standard 18-55mm and Sigma 70-300mm lens without IS. Is it true that a teleconverter cannot be used with my Sigma lens? Can it be used only with block lenses, or is there ...
18
votes
4answers
4k 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 ...
7
votes
2answers
315 views

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.
8
votes
2answers
312 views

Are there any downsides in using 2x extenders?

What are the negatives with using teleconverters?
14
votes
3answers
2k 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 ...
10
votes
8answers
3k 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 ...