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DIY: Nikon/Canon DSLR Camera DK-17M Magnifying Eyecup/Eyepiece Mod

I've been looking for a viewfinder for my Nikon D7000 DSLR Camera that sticks out further, something similar to what is available for the Nikon D700. I wear glasses and my face tends to touch the LCD screen leaving smudges. So I've been googling and there hasn't been much information.

Nikon has magnifying viewfinders for the D7000 such as the Nikon DG-2 2x Eyepiece Magnifier and Nikon DK-21M Magnifying Eyepiece (see all Camera Power Adapters) but it's either too big or too small. There is also the Tenpa 1.22x or 1.33x magnification but would you really trust ordering something overseas that costs approximately $50 and end up not liking it? I've also read that magnifiers are usually used for those who use manual focus lenses. So I thought I would make mine a little different and unique from the rest of the Nikon D7000's and be able to use OEM Nikon products. By purchasing from reputable stores such as Amazon, B&H Photo and Adorama, if I didn't like it or decided not to go through with the mod, I return them for a refund. If I had already started to mod the DK-22, I wouldn't be able to return and just each the cost of it.

I'm going to be showing 2 options using all original OEM Nikon products. Both options work on Nikon DSLR's such as D70, D70s, D300, D300s, D90 and on some Canon DSLR's such as Canon EOS 5D, Pentax, Olympus and Sony (you may need to do some additional research).

Compatible With Nikon: Nikon D40 / D40X · Nikon D50 · Nikon D60 · Nikon D70 / D70s · Nikon D80 · Nikon D90 · Nikon D100 · Nikon D200 · Nikon D300 / D300s · Nikon D600 · Nikon D3000 · Nikon D3100 · Nikon D3200 · Nikon D5000 · Nikon D5100 · Nikon D7000 · Nikon F80 / N80 · Nikon U2 / F75 / N75 · Nikon F70 / F70D / N70 / N70D · Nikon U / F65 / N65 · Nikon F60 / F60D / N60 / N60D · Nikon Us / F55 / N55 · Nikon F50 / F50D / N50 / N50D · Nikon F601 / N6006 · Nikon F501 / N2020 · Nikon F401 / N4004 · Nikon F401X / N5005 · Nikon F401S / N4004S · Nikon F301 / N2000 · Nikon Pronea 600i · Nikon Pronea S · Nikon EM · Nikon FE10 · Nikon FG · Nikon FG-2 · Nikon FM10

Compatible with Canon: Canon EOS 450D / Rebel Digital XSi / Kiss Digital X2 · Canon EOS 400D / Rebel Digital XTi / Kiss Digital X · Canon EOS 350D / Rebel Digital XT / Kiss Digital N · Canon EOS 500D / Rebel Digital T1i / Kiss Digital X3 · Canon EOS 550D / Rebel Digital T2i / Kiss Digital X4 · Canon EOS 1100D / Rebel Digital T3 / Kiss Digital X50 · Canon EOS 600D / Rebel Digital T3i / Kiss Digital X5 · Canon EOS 650D / Rebel Digital T4i / Kiss Digital X6i · Canon EOS 1000D / Rebel Digital XS / Kiss Digital F · Canon EOS 20D / 30D / 40D / 50D / 60D · Canon EOS 5D

[update headline="UPDATE"]Timeline of updates.[/update]
  • [10/1/12] DK-22 compatibility with Nikon D600; added Canon EP-EX15/EX15II to list
  • [7/15/13] Found a compatible eyepiece extender for Canon EOS 7D/Mark II, 5D Mark III/IV, 5DS/R, 1D C, 1D Mark III/IV, 1D X/Mark II and 1Ds Mark III — Full review
  • [1/14/14] Added Hoodman HoodEye eyecup for Canon 7D/Mark II, 5D Mark III/IV, 5DS/R, 1D C, 1D Mark III/IV, 1D X/Mark II and 1Ds Mark III.
  • [4/21/15] Added Think Tank Photo Hydrophobia EP-20 Eyepiece for Canon 5D Mark III, 5D Mark IV, 5DS, 5DS R, 1D Mark III, 1D Mark IV, 1D X, 1D X Mark II, 1D C, 7D, 7D Mark II, Olympus E3 and E30.
  • [4/11/16] Added Canon MG-Eb and MG-Ef 1.2x magnifying viewfinder.
  • [1/24/17] Our 3D Printed Canon Eyecup Eg Eyepiece Extender for 7D/Mark II, 5D Mark III/IV, 5DS/R, 1D C, 1D Mark III/IV, 1D X/Mark II and 1Ds Mark III is now available for purchase — CLICK HERE



If you own a Canon camera and don't want to do the mods discussed in this article, or you're a loyal Canon user and just want to know what is Canon's solution, you can purchase the Eyepiece Extender EP-EX15 or EP-EX15II. These are direct eyepiece replacements. The EX15's extend the eyepiece 5/8" (15mm) from the camera body and reduces viewfinder magnification by 30%.

The EP-EX15/EX15II do not fit the EOS 7D, 7D Mark II, 5D Mark III, 5D Mark IV, 5DS, 5DS R, 1D C, 1D Mark III, 1D Mark IV, 1D X, 1D X Mark II and 1Ds Mark III (see below for compatible eyepiece).

On February 6, 2015, Canon Magnifier launched two viewfinder accessories. The MG-Eb is for APS-C format EOS Digital SLR cameras that are compatible with Eyecup Eb. The MG-Ef is for EOS Digital SLR cameras that are compatible with Eyecup Ef. Both magnify the viewfinder image by approximately 1.2x.

EX-EP15 (left); EX-EP15II (right)

You can purchase the EP-EX15 or EP-EX15II from the following sites:

EP-EX15: (MSRP $16.95) = Compatible with the Canon Digital Rebel, Digital Rebel XT, Digital Rebel XTi, 1D, 1D Mark II, 1D Mark II N, 1Ds, 1Ds Mark II, 1V, 20D, 20Da, 30D, 40D, 5D, 6D, D30, D60, EOS 3, IX LITE, Rebel 2000, Rebel G, Rebel G II, Rebel K2, Rebel T2, Rebel TI
EP-EX15II: (MSRP $15.95) = Compatible with the Canon EOS 40D, 50D, 60D, 5D Mark II, Rebel XS, XSi, T1i, T2i, T3, T3i, and T4i
MG-Eb: (MSRP $45.00) = Compatible with the Canon EOS 6D, 70D, 60Da, 60D, 50D, 40D, 30D, 20D, 10D, D60, D30, RT, 850, 750, 700, 650, 630, 620, 10S, ELAN; Canon EOS Rebel T2, Ti, 2000, K2, GII, G, XSN, XS, X, 5D, 5D Mark II and cameras that use Eb eyecups
MG-Ef: (MSRP $45.00) = Compatible with the Canon EOS Rebel T6i, T6s, T5i, T5, T4i, T3i, T3, T2i, T1i, SL1, XSi, XS, XTi, XT, T2, Ti, K2 and cameras that use Ef eyecups
The following is compatible with EOS 7D/Mark II, Mark II, 5D Mark III (pictured)/Mark IV, 5DS, 5DS R, 1D C, 1D Mark III, 1D Mark IV, 1D X/Mark II and 1Ds Mark III: (MSRP $19.99) - FULL REVIEW

*Since the JJC/Goja is no longer being produced, we have created a CAD file (from scratch) of the eyecup extender which will allow us to print a 3D model of it. The 3D printed version is now available for purchase. For more information and to purchase, CLICK HERE.

Hoodman HoodEye ($19.95):
Think Tank Photo Hydrophobia Eyepiece EP-20 ($19.95) - to be used with Hydrophobia Cover:

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