Bison Bud

Sony has put their A7II on sale for Memorial Day and I must admit that I am very tempted! I have been interested in a Mirrorless system for awhile now, but have wanted to stick with Canon due to my current group of EF and EFS lenses. However, there is apparently a Sony E to Canon EF-EFS adapter available and I would appreciate any feedback from those out there that have used one. If it works fairly well, I may have to pull the trigger on a new A7II, so any feedback on using Canon lenses on a Sony M-mount camera would be very helpful. Thanks and good luck and good shooting to all.

Nalu Loc: Southern Arizona

I am in the market for a Canon to Sony amount adapter. Have not checked anything out except the one offered by Metabones. I will be interested in another option. Was not aware of others.

CHG_CANON Loc: the Windy City

The EOS R5 will change how we think about mirrorless, how we think about photography, how we think about life.

BTW - I have an a7II. There's nothing special / unique about this 24MP camera. The menu is frustrating, but like most things in life, you can lower your expectations and live with it. The battery life is OK enough, but still nowhere as good as any EOS DSLR I've owned, ever. Word is Sony has resolved this weakness for the model a7III onward. I never leave home with the a7II without three fully charged batteries, although 1+ is typically all I need for a full-day of shooting.

I use the Sony only as a digital platform for my FD manual focus lenses. Here features like IBIS and the 10x zoom in the EVF breathe completely new life into legacy manual focus lenses. Your EF / EFS lenses are already autofocus. An IS lens is no better or worse than IBIS. The smaller size of the Sony body has some 'coolness' aspects, but the weight difference is negligible, especially when a FF lens is mounted.

The Sony a7II is an E-mount, so either you've made a typo or want to double-check your data. The native mirrorless lenses are really where it's at for mirroress bodies. They're sharper and have integration with the body where buttons / dials on the lens can be programmed for a number of body control options.

It's your money. It's your decision. It you let the UHH community spend your money, nothing you have will ever be good enough to their standards.

imagemeister Loc: mid east Florida

The AF on the A7II is relatively not all that good to be accepting Canon AF lenses with adapter of any kind ....

imagemeister Loc: mid east Florida

The Sigma MC11 is thought to be the BEST - make sure you have the latest firmware update for the MC11 tho ...

Nalu Loc: Southern Arizona

HMMMM, really. There should be some comparisons on youtube, I will check it out. I have a couple of Canon primes (sigma art f/1.4 50mm and Canon 24 f/2.8) that I want to try out with with the Sony bodies.

Thanks Larry

Bison Bud

Thanks for the feedback! I corrected the M-mount to the proper Sony E as mentioned in the original post. I guess I am still a bit hung up on Canon's mirrorless offerings and typed M instead of E to identify the Sony mount.

amfoto1 Loc: San Jose, Calif. USA

Have you considered a Canon RP instead of the a7II?

Canon RP... $999
Sony a7II... $898

Canon EF/EF-S to RF adapter... $99
Sigma MC-11 Canon EF/EF-S to Sony E-mount adapter... $199

https://www.bhphotovideo.com/c/compare/Canon_EOS_RP_Mirrorless_Digital_Camera_Body_Only_vs_Sony_Alpha_a7_II_Mirrorless_Digital_Camera_Body_Only_vs_Canon_Mount_Adapter_EF-EOS_R_vs_Sigma_MC-11_Mount_Converter_Lens_Adapter_Sigma_EF-Mount_Lenses_to_Sony_E/BHitems/1459282-REG_1102008-REG_1433717-REG_1234034-REG

Note: Canon actually offers three different EF/EF-S to RF adapters. Above is the least expensive "plain" one. Recently Canon USA was offering this "refurbished" for $41 (There are few moving parts in it, so I'm not sure what is "refurb'd"... maybe they are simply demo/open box units that can no longer be sold new. Canon USA refurbs have the same warranty as and are little different from new.) Another EF/EF-S to RP adapter that sells for $199 has an integral "control ring" that can be assigned to do various camera functions such as changing ISO, switching from One Shot to AI Servo AF, or various other functions that the user wishes. A third EF/EF-S to RF adapter has provision for drop-in filters, which can be particularly useful with certain lenses that cannot use standard filters such as the EF 11-24mm f/4L and TS-E 17mm f/4L. One version comes with a circular polarizer drop-in filter. Another comes with a variable ND filter. Other types of filters can be fitted to them. These two adapters are rather expensive: C-Pol $299. Vari ND $399. There are also less expensive 3rd party "plain" EF/EF-S to RF adapters such as a Viltrox for $45.

As of right now, there are far more native e-mount lenses for the Sony camera than there are RF-mount lenses for the Canon. We've been told that there are a lot of RF lenses in development that will be introduced soon, but it will be a few years until Canon catches up with what Sony currently offers. (However the Canon EF/EF-S lens system is more than twice as expansive as the Sony e-mount selection.)

Canon RP... 2019
Sony a7II... 2014 (more than 4 years older)

Canon RP... 26MP
Sony a7II... 24MP

Canon RP... 4779 dual pixel AF points (all phase detection), covering almost 90% of image area.
Sony a7II... 117 phase detection AF points (less than 50% of image area), 25 contrast detection AF points.

According to Canon, there is no loss of AF performance when using Canon EF/EF-S lenses on the RP via their EF-to-RF adapter. In fact, the EOS RP's AF system is able to work in lower light conditions than any of the Canon DSLRs: -3.5EV (versus -3EV in the best of the DSLRs... -1EV or -0.5EV in many others). The EOS RP is also "f/8 capable", meaning it can autofocus lens/teleconverter combos that are "effective f/8". This is possible across most of the image area of the RP. Among Canon DSLRs only the more recent and higher end models have this capability and most are limited to only doing so at select AF points.

Users who adapt Canon lenses to Sony cameras via the Sigma MC-11 generally report some reduction in AF performance. Haven't done this myself so I can't compare. Maybe someone else can give you specifics. The Sony a7II is able to focus as low as -1EV (requires 2.5 more stops of light to AF). This goes hand in hand with each camera's metering systems...

Canon RP.... metering range -3EV to 20EV
Sony a7II... metering range -1EV to 20 EV

Canon RP... ISO 100-40000 (expands to 50 and 102500)
Sony a7II... ISO 100-25600 (expands to 50 and 51200)

Canon RP... 5 frames per second (One Shot), 4 frames per second (AI Servo)
Sony a7II... 5 frames per second

Canon RP... Fully articulated 1 million dot 3" Touchscreen LCD
Sony a7II... Tilting 1.4 million dot 3" LCD screen

Canon RP... 4K 25 fps, 1080p HD 60 fps video
Sony a7II... 1080p HD 60 fps video

Canon RP... no in-camera stabilization (electronic only with video)
Sony a7II... in-camera 5 axis stabilization

Canon RP... top shutter speed 1/4000
Sony a7II... top shutter speed 1/8000

Canon RP... 250 shots per battery charge (CIPA test)
Sony a7II... 350 shots per battery charge (CIPA test)

The Canon camera comes with a battery charger, which can be useful to charge a spare battery while continuing to shoot with the camera. Sony does not include a battery charger with the camera. Instead they provide a cable to charge the battery while it's in the camera. A Sony charger is sold separately for $48. There are cheaper third party chargers.

Canon RP... No battery grip is optional.
Sony a7II... Optional battery grip doubles capacity, costs about $350.

Canon RP... Image buffer 50 RAW, unlimited JPEG
Sony a7II... Image buffer limit 28 RAW, 52 JPEG

Both cameras use SD memory cards. The Canon RP can take advantage of the faster UHS-II type cards.

Some additional info:

https://mirrorlesscomparison.com/canon-vs-sony/canon-eos-rp-vs-sony-a7-ii/
https://cameradecision.com/compare/Canon-EOS-RP-vs-Sony-Alpha-7-II
https://www.imaging-resource.com/cameras/sony/a7-ii/vs/canon/eos-rp/
https://www.apotelyt.com/compare-camera/canon-rp-vs-sony-a7-ii

Bison Bud

Thanks for all the comparison data here! I am truly interested in the Canon RP and would probably jump if they would offer a Memorial Day discount price or maybe throw in the R to EF/EF-S adaptor. However, I still like the magnesium alloy body and beefy mount on the A7II, but reports on it's auto focus performance, especially with the Canon lens adaptor, have soured me a bit on pulling the trigger on one this weekend regardless of the sale pricing. Frankly, parting with the kind of money needed for either the RP or A7II is a tough decision for someone on a fixed income and an especially low budget for hobbies and entertainment. I don't really need either, but would really like to have a mirrorless system and possibly move to full frame. Call it GAS if you want, but new toys are important to one's enjoyment of life, I just have to make smart decisions and make the new toys last a good while before the next one. Good luck and good shooting to all.

ggenova64

I never leave home with the a7II without three fully charged batteries, although 1+ is typically all I need for a full-day of shooting.

Why don't you buy a used Battery Grip?

JanSIrons Loc: Central Illinois USA

Prior to my A7iii, I shot with a Canon T6i, I had a Sigma 120-400 zoom with a Canon mount. The person who helped me back before my camera store went out of business, recommended the Sigma MC-11 to allow me to keep using my zoom. I also purchased a used Canon 24-105 since I had the adapter. I don't have a frame of reference for focus - it seems mine focuses the same percentage of the time that the T6i did, I don't see a focus difference. The image quality is better which I would hope. I'm not familiar with the A7ii, so can't comment directly to it. But I do have 2 Canon/Sigma lenses and a Sigma MC11 adapter that seem to work just fine. Maybe shooting mainly landscapes and perched birds has a bearing. Good Luck!

SteveG Loc: Norh Carolina

I'm partial to the A7II! The kit lens, especially for the money, is excellent. I don't care what the reviews may happen to say. For $998, I IS and a 28-70mm lens, you have a wonderful starting point. Just get an extra battery. If you plan on shooting for an extended period of time. Let me know if you have any questions! I'll be happy to help you out.

rcarol

I have the Sony A7II and use both the Metabones and the Sigma adapter which allows me to use my EF lenses on the A7II. Both work well when using EF lenses. However, the Sigma adapter will not accept Canon EF-S lenses to mount on the A7II.

rcarol

I disagree. I use the A7II with Canon lenses adapted using the Metabones and Sigma adapter. Autofocus is both fast and accurate.

SteveG Loc: Norh Carolina

I tried the Sigma adapter for a Canon mount Sigma 70-300mm OS lens. Unfortunately it didn't work on that particular lens. I ended up with the LAEA4 adapter from Sony. Just too big and bulky. So I'm looking at a telephoto prime. Leaning towards a 200mm for now for size. The 300mm's seem to be just too big for as much as I might need that much reach. I usually take scenic or macro but occasionally I have an occasion where I might need a little more reach. But that "look" of the vintage lenses are something that just seems to be lacking in modern lenses. Could be my imagination but......