Question about Cameras

Open Question

Sakar 2x doubler on Nikon vc lens

Can you use a Sakar MC 2X n/afs lens on a vibration control lens?
Will you have full function?

Posted by on

3 Suggested Answers

SOURCE: AF problem with Quantaray 2X adapter

I believe a tele will not work with auto focus when the lens is f4 or larger at the smallest end.

Posted on Jun 24, 2008

  • 73 Answers

SOURCE: Can you tell me the Pros and Cons of using a Bower

A 2X adapter is an item attached between your lens and camera body. It's AF (which is good) and N (most likely a Nikon).
They make what ever zoom lens 2X the focal length. So a 135mm becomes a 270mm. So you get a bigger tele lens. They add extra glass, so the image is not as good without it, they eat up an F/stop. So outdoors in bright sunlight, no problem. It's shady and you have ASA 200 and you are going to have a slow shutter speed that can cause blur. Plus the viewfinder gets darker due to the extra glass. So in dim light, it may not AF and be hard to manual focus.

Posted on Jul 27, 2009

  • 102366 Answers

SOURCE: quantaray 2x AF for Nikon

A 2x tele-extender will rob you of two stops of light. This is simply a matter of physics: you're looking at only one quarter of the scene, so you'll only get one quarter of the light.

You specified neither the camera body you're using nor the lens you're using the tele-extender with. Most Nikon bodies will not autofocus with lenses slower than F/5.6. (Actually, they might, but F/5.6 is what Nikon specifies.) With the two-step penalty, a lens would have to be F/2.8 or faster in order to autofocus.

The solution is to either get a faster lens ($2000 or so) or to switch off the autofocus and go manual.

Posted on Feb 05, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

What is T Mount Telephoto Zoom Lens with 2x Teleconverter


The T-mount is a universal thread developed by Tamron which allows various adapters to couple a lens to a wide variety of camera brands. If a lens is listed as having a T-mount, it means that the lens can be coupled to your camera if you have a T-mount adapter for your camera.

A 2X teleconverter (often called a doubler) enables a lens of a specific to be doubled. For example, the lens referenced above actually is a 650-1300 lens but with the 2X teleconverter the focal length can be doubled to a maximum focal length of 2600.

I have an Opteka 600-1200 telephoto lens which I consider to be a decent lens for its very low price. I also have a doubler which came with my camera kit. That means I can increase the focal length of my lens to 2400 but I cannot imagine any reason to do so. At it's full zoom 1200mm focal length, this lens is very difficult to handle and must be used on a tripod with a remote shutter release.

It is extremely time consuming to focus and must be focused very accurately because it has almost no depth of field. At 1200 mm, the slightest breeze or vibration will cause the picture to go fuzzy from movement.

The lens is also large and does not fit conveniently in a camera bag so it rarely goes with me unless I know for sure that I will need it. It is not particularly good for sports action shots because the action will be over before you are ready to shoot the picture. With very bright light (such as the mid-day sun) and pre-planning and pre-focusing you might be able to get some interesting sports action shots. Say you're at an automobile race and you know a car will be coming into view at a certain spot, you can set up for that spot then trip the shutter when the car pops into view.

All that being said, I think this is a good lens to have in my bag without spending $10,000 plus for a really good lens of this size.

Feb 08, 2013 | Opteka 650-2600mm High Definition...

1 Answer

Can Tamron 2 X converter C-AF 1 BBAR MC-7 mounted with Canon 100-400mm? Tks


As you can read in the Dpreview link the Tamron converter can work perfectly with the Canon cameras. Question is, will AF still work, because you have to multiply the aperture twice. So if your lens has f/1:5,6 that will become f/1:8. Most camera's can't auto focus anymore on F 8

link to Dpreview Tamron 2X converter

Oct 15, 2012 | Tamron F AF TELE-CONVERTER 2X C-AF1 BBAR...

2 Answers

Want inexpensive 2x af teleconverter for d70 nikon lens 80-200 ed


You can order the Tamron 2x teleconverter here. Be aware that not all lenses are compatible with teleconverters, and you can actually damage some lenses by trying to use them with a teleconverter.

Jul 14, 2012 | Tamron 2x Auto Focus Teleconverter with...

1 Answer

How do i attach the my zeikos 52mm HD Dslr MC AF 2x telephoto lens to my nikon d90?


You don't. The Zeikos attaches to the front of lens with a 52mm filter thread, which then attaches to the D90. If you have the 18-55mm lens, for example, this will fit onto the front of that lens, effectively converting it to a 36-110mm lens. If you have the 18-105mm lens, this won't fit onto it.
This device is really intended for use with cameras that don't have interchangeable lenses. With your D90, you're much better off using another lens instead of putting this onto the front of another lens.

Feb 13, 2012 | Zeikos ZE2X52B 52mm 2X Telephoto Lens

1 Answer

I just bought a tamron di 2 AF 55-200mm f/4-5.6 LD macro for my nikon D40 and i can't get it to autofocus


That 2x is not AF-s compatible. It is the older Af style which the d40 does not support. Your camera store should have known this when they sold it to you, unless you bought it mailorder. Then see if they will let you return or exchange it.

Nov 04, 2009 | Tamron Autofocus 2x Teleconverter Lens for...

1 Answer

Can you tell me the Pros and Cons of using a Bower MC 2X N/AF. I am not an expert in using lens and Photography so Please make it simple.


A 2X adapter is an item attached between your lens and camera body. It's AF (which is good) and N (most likely a Nikon).
They make what ever zoom lens 2X the focal length. So a 135mm becomes a 270mm. So you get a bigger tele lens. They add extra glass, so the image is not as good without it, they eat up an F/stop. So outdoors in bright sunlight, no problem. It's shady and you have ASA 200 and you are going to have a slow shutter speed that can cause blur. Plus the viewfinder gets darker due to the extra glass. So in dim light, it may not AF and be hard to manual focus.

Jul 06, 2009 | Cameras

1 Answer

Can I use a Kenko Lens with a Nikon D60?


If it's an AF teleconverter you will be able to use it and get proper exposure from the camera, but it will not autofocus with the D60. The D60 requires AF-S lenses and teleconverters for autofocus.

Mar 01, 2009 | Kenko MC-4 DG for Nikon AF 2x (MC4AFNDG)...

1 Answer

Thinking of buying a vivitar teleconverter


If the vivitar 2x is not autofocus, then you will obviously give up 90% of the cameras focus, metering and flash functions. All 2x lenses loose 2 stops of light so the f2.8 lens will now be f 8. If that is acceptable then it may be worth the few dollars to get double the power for the lens

Feb 08, 2009 | Vivitar Series 1 for Nikon AF 2x (318604)...

2 Answers

AF problem with Quantaray 2X adapter


How does it stop working? Do you mean it doesn't auto focus anymore?
Many longer focal length lenses wont auto focus with 2x teleconverters on them.

Nov 27, 2007 | Quantaray 100-300mm F4.5-6.7 Zoom lens for...

Not finding what you are looking for?
Cameras Logo

Related Topics:

276 people viewed this question

Ask a Question

Usually answered in minutes!

Top Cameras Experts

kakima

Level 3 Expert

102366 Answers

Steve

Level 3 Expert

3287 Answers

yadayada
yadayada

Level 3 Expert

70346 Answers

Are you a Camera Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...