Urth
Canon (EF/EF-S) Lens Mount to Sony E Camera Mount (Electronic)
Regular price $239.00Unit price
IMPULSE
Urth Lens Mount Adapter: Compatible with Leica M Lens to Sony E Camera Body
Regular price $65.00Unit price
ProMaster
ProMaster Small Thread Adapter - 3/8"-16 female to 1/4"-20 male
Regular price $6.95Unit price
$93.00 offNOVOFLEX
Adapter Hasselblad X-Mount (X1D) Camera Body to Leica M Lenses
Sale price $311.00 Regular price $404.00Unit price
$66.00 offNOVOFLEX
Adapter Nikon F-Mount Lenses to Canon EOS Camera Body
Sale price $219.00 Regular price $285.00Unit price
Unlock Any Lens on Any Camera
Lens adapters let you mount lenses from one system onto a camera body from a completely different system — opening up decades of glass from Canon, Nikon, Leica, Contax, and beyond to modern mirrorless mounts like Sony E, Fujifilm X, Micro Four Thirds, and L-mount. Whether you're preserving an investment in legacy glass, chasing a vintage rendering for a cinematic look, or bridging PL cinema lenses to a mirrorless body, the right adapter is a high-value upgrade for any shooter.
Buying Guide: Lens Adapters
Why Adapt Lenses?
Mirrorless cameras have extremely short flange distances — the gap between the mount and the sensor — which means almost any lens ever made can be physically adapted to fit. Shooters adapt lenses to save money (a Nikon F lens bought for $200 can outperform a kit lens), to achieve a specific optical character (vintage Leica M or Contax Zeiss rendering), or to use high-end cinema PL glass on a mirrorless body for narrative work.
Dumb Adapters vs. Autofocus Adapters
A "dumb" adapter is a simple mechanical ring — it physically mounts the lens but passes no electronic signals. You lose autofocus, automatic aperture control, and EXIF data. A "smart" adapter has electronic contacts that communicate between lens and body, preserving autofocus, aperture control, image stabilization data, and sometimes even subject-tracking. Smart adapters cost more but behave much closer to native lenses. Metabones, Viltrox, and Sigma make the most capable AF adapters for Canon EF→Sony E and Canon EF→L-mount conversions.
Canon EF to Sony E — The Most Popular Pairing
The Canon EF→Sony E-mount adapter is the most-requested pairing in our shop. Sony's a7 and FX series bodies have a huge aftermarket of EF adapters. The Metabones Smart Adapter V is the gold standard for reliable phase-detect autofocus with Canon EF lenses. The Viltrox EF-E II is a more affordable alternative with solid autofocus performance. For cinema, the Metabones Speed Booster Ultra also crops APS-C glass back toward a full-frame field of view — useful on Sony APS-C bodies like the a6700 or FX30.
Nikon F and Vintage M42 Adapters
Nikon F lenses are widely available used and cover both full-frame and APS-C sensors. Dumb Nikon F→Sony E adapters are extremely affordable and work well for manual-focus video and portraiture. M42 screw-mount lenses — used by Pentax, Zeiss Jena, and many Soviet-era brands — produce a distinctive vintage rendering prized by portrait and narrative filmmakers. Simple, inexpensive dumb adapters are all you need for M42 glass.
Cinema PL Adapters
PL (Positive Lock) mount is the professional cinema standard used by Arri, Cooke, Zeiss, and Leica cinema lenses. PL→EF, PL→Sony E, and PL→L-mount adapters allow cinema lenses to be used on mirrorless bodies — though most PL lenses are manual focus only and require manual aperture control. Fotodiox Pro and MTF Services make reliable PL adapters for production use.
Adapter Brands: Metabones vs. Viltrox vs. Fotodiox
Metabones is the premium option — best autofocus performance, highest build quality, most compatible with native lens protocols. Viltrox offers excellent mid-range value, particularly their EF-E and EF-M adapters with reliable phase-detect AF. Fotodiox covers the widest range of obscure mount combinations and is the best source for vintage and cinema adapters. K&F Concept and Urth offer basic dumb adapters at entry-level price points.
Will autofocus work with an adapted lens?
It depends on the adapter and lens combination. Smart adapters (Metabones, Viltrox) support phase-detect autofocus with Canon EF lenses on Sony bodies, often with reliable continuous AF for video. Native lenses will always outperform adapted ones for AF speed and reliability. Vintage and manual cinema lenses on dumb adapters have no AF at all — focusing is entirely manual.
What is a Speed Booster and do I need one?
A Speed Booster (or focal reducer) is an adapter with an optical element that compresses the image circle of a full-frame lens onto a smaller sensor, recovering approximately one stop of light and widening the field of view. On a Sony APS-C camera like the a6700, a 0.71x Speed Booster makes a 50mm full-frame lens behave like a ~35mm — closer to a native full-frame field of view. If you're shooting on APS-C and want to use full-frame glass, a Speed Booster is worth the investment.
Do lens adapters affect image quality?
A well-made metal adapter with precise tolerances (Metabones, Novoflex) introduces no optical degradation — it's just a mechanical spacer. Speed Boosters add optical elements and, like any glass, can introduce slight aberrations at the corners wide open, though quality models are very well corrected. Cheap adapters with poor tolerances can cause focus shift, vignetting, or infinity focus problems — stick with reputable brands.
Can I use my Canon RF lenses on other cameras?
Canon RF lenses are designed for Canon's own RF-mount cameras. Because the RF flange distance is very short, adapting RF lenses to other systems is not officially supported by Canon, and third-party adapters for this direction are limited. Going the other direction — adapting Canon EF lenses to other systems — is very well supported with smart adapters from Metabones and Viltrox.
What's the difference between a mount adapter and a lens converter?
A mount adapter changes which body a lens physically attaches to, preserving the lens's original optical formula. A converter (teleconverter or wide-angle converter) adds additional optical elements to change the effective focal length — typically 1.4x or 2x for teleconverters. Some adapters combine both functions, like the Metabones Speed Booster which is technically a focal reducer/converter built into an adapter.
Visit Us in Milwaukee — Not sure which adapter works with your specific lens and camera combination? Stop by at 7965 S Main Street, Oak Creek, WI or email sales@impulsemke.com. We can verify compatibility, test autofocus behavior, and help you find the right adapter for your glass — new or used.
