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The hot shoe mount on my EM 140 DG Macro ringflash has broken on one side and I require a new fitting + lock ring

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Contact Sigma and ask if you can purchase a dedicated base for your flase to fit your brand camera. The bases on generic flashes generally are interchangeable.

Posted on Sep 19, 2009

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How do I switch to an aperture higher than f/32 on my nikon d3000?


Yes. Just lock the lens aperture ring at its smallest setting (largest f/number). If you need to change the aperture, change it from the camera body by turning the command dial, the same way as with a lens without an aperture ring.

Jul 18, 2014 | Sigma 50mm F2.8 EX DG Macro Lens For Nikon

1 Answer

Replacement part


The bases are sold on EBay, I replaced 2 of them. There cheap comparably from buying a new one. Like you said 4 screws, but be careful there is also 4 springs inside. http://www.ebay.com/itm/Canon-MR-14EX-Ring-Light-Replacement-Flash-Shoe-Foot-Free-Shipping-/370901814099?pt=Camera_Flash_Accessories&hash=item565b788b53

Good Luck Raf Camera Guy!

Mar 26, 2014 | Canon MR-14EX TTL Ring Light Flash

1 Answer

HOW TO PUT Fotodiox 49mm Filter Thread Macro Reverse Mount Adapter Ring for Sony E-series


The ring threads onto the front of any lens with a 49mm filter thread, just like a filter. The front of the lens then fits onto a camera body, effectively mounting the lens "backwards" or reversed. With most lenses, this allows the lens to focus very close, for close-up or "macro" photography.

Mar 14, 2013 | Fotodiox 49mm Filter Thread Macro Reverse...

1 Answer

Does Sigma 70-300mm f/4-5.6 DG Macro Telephoto Zoom Lens fit canon eos rebel


Sigma makes their lenses with a variety of camera mounts. If you get the lens with a Canon mount then yes, it will fit any EOS Rebel camera body. A lens with a Pentax mount, for example, will not fit a Canon camera.

Nov 24, 2012 | Sigma AF 70-300mm f/4.0-5.6 DL Macro Super...

2 Answers

Where can i buy a Sigma 70-300mm f/4-5.6 DL Macro AF Lens mount adapter for a canonEOS 500D


You can't, not as far as I know.

Getting functionally useful adaptors from any other brand to Canon EOS is difficult as the register distance from the sensor to the lens is the deepest of all current lens mounts. Adaptors therefore require expensive optical correction in order to preserve infinity focus ability and given that the adapted lens will still be substantially crippled most owners aren't prepared to pay for such an adaptor. In any case, the additional optical elements will reduce optical quality.

Due to similar electronics, it is possible to physically convert a Sigma mount lens to EOS by fitting an EOS lens bayonet but it's a skilled job requiring fabrication skills and even then there's no guarantee that the lens will communicate correctly with all EOS bodies. In practice, due to the scarcity of Sigma mount lenses the conversion is usually the other way around.

Sep 15, 2010 | Sigma AF 70-300mm f/4.0-5.6 DL Macro Super...

1 Answer

According to the manual for my Sigma 105mm f2.8 EX DG Macro lens with my Nikon D90, when using P or Sutter priority auto mode the diaphragm control ring needs to be set to the smallest aperture(f32) and...


In all modes the aperture ring on the lens should be locked at the smallest aperture. In the M and A modes you control the aperture by turning the command dial on the front of the camera. In P and S modes you control the aperture indirectly by turning the command dial on the back of the camera.

Aug 04, 2010 | Sigma Telephoto 105mm f/2.8 EX Macro...

1 Answer

Rubber casing of lens gummy;difficult to extend or shorten lens


did the lens get hot (closed in hot car)?- probably melted some of internal lubricant and /or adhesive on rubber rings or caused the rubber ring itself to start to deteriorate

Apr 23, 2010 | Sigma 70-300mm f/4-5.6 DG APO Macro Lens

1 Answer

Fitting a Sigma Lenset to Nikon D40


You have to make sure you bought the sigma lens with a NIKON mount. Sigma makes a Sigma mount as well as a Canon mount, of course neither of those mounts will work with your camera. Also you must also make sure your lens is the Sigma 70-300 HSM (/Hyper Sonic Motor) or it will not AF on the D40. I just bought this lens from Abes of Maine and I love it on my D40.

May 27, 2009 | Nikon D40 Body Only Digital Camera

1 Answer

Nikon D40 I bought a set of macro lenses that said they were compatible for the d40 but i cannot figure out how to fit them. They are 52mm lenses - should i have bought an adaptor or something? where...


Macro lenses are mounted to your camera body in place of the lens you currently have mounted on the camera. If you bought the camera with the lens already mounted you may not have realized that the camera and lens are 2 separate objects. To remove your lens see page 8 in your user manual for instructions and an illustration. If you don't have your user manual handy, you can download a PDF file from NikonUSA Here.

If what you bought are macro rings, they go on the camera, then your regular lens mounts onto the ring. You can use one or more of the rings between the lens and camera to produce different macro settings.

If what you bought are macro filters, they screw on to the front of your lens. If you have a UV filter on your lens you need to remove that before you attach another filter.

Dec 22, 2008 | Nikon Cameras

1 Answer

Switch from film to digital cameras.


I also own a Vivitar 285 that i used with my Canon F1 manual 35mm camera. Most older cameras before the advent of digital, had a hot shoe on top of the camera, or like in my case, the hot shoe went over the rewind knob. I also had to plug in a power cord from the 285 flash foot and the cameras PC connection in order for the flash to work on some other cameras. The Canon Rebel XTi has a TTL (through the lens) hot shoe usable with Canon's own EX flash units. You can buy a "hot shoe to PC connector" if the TTL camera hot shoe doesn't work, but be extremely careful, the only problem that exists with the older manual flash units was the trigger voltage is as high as 200+volts which would fry digital camera hot shoes. I tried my unit with a Wein flash trigger device on the PC cord of the flash and my Canon D60 with it's own flash. All shots were overexposed and washed out highlights.  Here's a copy of the hot-shoe review:h The EOS 400D's hot-shoe can be used with Canon and third party flashes (although sync only on most third party units). The hot-shoe is E-TTL II compatible. Compatible flashes include Speedlite 220EX, 380EX, 420EX, 430EX, 550EX, 580EX, Macro-Ring Lite, MR-14EX, Macro Twin Lite MT-24EX and Speedlite Transmitter ST-E2.  The Canon Rebel XTi doesn't have a PC socket to plug in a manual flash trigger cord which common sense tells me there is no provision to step up the voltage to trigger manual flashes - so my answer is this combination is not a good idea on a Canon Rebel XTi. Hope this helps.

Dec 12, 2008 | Vivitar 283 Flash

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