Pansonic Lumix G7 -Adapter Ring Question (To Use My Canon EF-S Lenses)

Hi Guys,

I just ordered a Lumix G7 with 14-42mm kit lens. Im awaiting delivery. But meanwhile i would like to know if i can use my canon EFS lenses with this camera using...

Speedbooster (electronic) ?

Viltrox adapter (electronic but little cheaper) ?

Manual ring ?

Manual ring with only aperture blades ?

These are the 4 options i keep seeing on youtube etc.

I mainly have a Sigma 10-20mm canon EFS mount and was wondering if i can use that on the G7. I just want to get a little more wider than the 14mm on the kit lens.

Can any of you help and advise ?

Look at your lens when it's not connected to a camera. Can you operate the focus and aperture? That will tell you if a non-electronic adapter is something you want to consider.

i would prefer more info, aka see the lens in question and what the photography use is to give a great answer.

electronic adapters let you use autofocus

the other adapters are manual only.

stonehedge007 wrote:

Hi Guys,

I just ordered a Lumix G7 with 14-42mm kit lens. Im awaiting delivery. But meanwhile i would like to know if i can use my canon EFS lenses with this camera using...

Speedbooster (electronic) ?

Cost not small.

Viltrox adapter (electronic but little cheaper) ?

Might need to check on compatibility issue.

Manual ring ?

Basically you can't control f/stop.

Manual ring with only aperture blades ?

(so called the smart adapter?) no precise f/stop control.

These are the 4 options i keep seeing on youtube etc.

I mainly have a Sigma 10-20mm canon EFS mount and was wondering if i can use that on the G7. I just want to get a little more wider than the 14mm on the kit lens.

Can any of you help and advise ?

Are your referring to the Sigma 10-20 f/4-5.6 lens?

If so, I might rather prefer to spend some US$100 (a brand new de-kit lens) for a 12-32 f/3.5-5.6 pancake lens for the excellent AF speed, ultra light weight (67~70g depending on your version), compactness (24mm in length) and quite good IQ.

It has IQ very compatible to 14-42 (assume you have the Mk-II version), wider start of 12 instead of 14 (the 32mm vs 42mm is of no material meaning IMHO, but quite significant on the 2mm different on the wide end), and much more compact. The only draw back, no focus ring for MF. BTE the accurate AF of Pany camera making MF fine tuning be rarely needed.

Trade in the 14-42 (if possible, should in the same money as 12-32) and replace it with a 12-32 can hardly go wrong (at least to me).

I always do not think it is worth to spend the extra money (more than US$100) for a focal reducer. As the particular Sigma lens concerned does not have an aperture control ring, you at least have to spend some more money (than a cheap dummy adapter) for a smart adapter, plus the extra weight of the adapter itself... It would only be an advisable option if you have some very expensive L lenses.

My 2 cents.

stonehedge007 wrote:

Mark9473 wrote:

Look at your lens when it's not connected to a camera. Can you operate the focus and aperture? That will tell you if a non-electronic adapter is something you want to consider.

None of my lenses have an aperture ring.

That limlits your choice of adapters to those that have a built-in iris.

They do have a manual focus ring and zoom ring though.

That's not enough information. The question is, if turning those rings when the lens has no electrical power, moves the lens elements or not. For zoom, the answer may often be yes, but for focus it is rather often no.

stonehedge007 wrote:

Are your referring to the Sigma 10-20 f/4-5.6 lens?

If so, I might rather prefer to spend some US$100 (a brand new de-kit lens) for a 12-32 f/3.5-5.6 pancake lens for the excellent AF speed, ultra light weight (67~70g depending on your version), compactness (24mm in length) and quite good IQ.

It has IQ very compatible to 14-42 (assume you have the Mk-II version), wider start of 12 instead of 14 (the 32mm vs 42mm is of no material meaning IMHO, but quite significant on the 2mm different on the wide end), and much more compact. The only draw back, no focus ring for MF. BTE the accurate AF of Pany camera making MF fine tuning be rarely needed.

Trade in the 14-42 (if possible, should in the same money as 12-32) and replace it with a 12-32 can hardly go wrong (at least to me).

I always do not think it is worth to spend the extra money (more than US$100) for a focal reducer. As the particular Sigma lens concerned does not have an aperture control ring, you at least have to spend some more money (than a cheap dummy adapter) for a smart adapter, plus the extra weight of the adapter itself... It would only be an advisable option if you have some very expensive L lenses.

My 2 cents.

Ok so you're bsically saying its better to go with fresh lenses for my LUMIX G7.

My G7 application is only video usage. My only requirement is to go wider to cover interiors of rooms properly. Say a 10x10 room from the room corner.

I think ill need at 7mm on this M43 camera ? because i understand even though its 7mm, on this DSLM it will give a me only a same FOV as my Sigma @10mm gives on my Canon 550d.

I only use my trusty old 550d for photography (Because already invested a little in lenses / attachments / multiple flashes for strobist work / flash triggers etc).

According to the op, you looked for an adapter to use 10~20 was because you need something wider than 14~42 came with G7.

I therefore suggest to trade in the 14~42 and buy 12~32 due to the wider start, cost not much extra from the trade and has similar IQ. Comparing with an adapter to use 10~20, the added weight, MF etc for a lower cost smart adapter, or in case of a focal reducer to retain AF the cost concerned might not be better than the 12~32 option.

The sigma will become FF eq FoV of 20~40 on M43 (without an expansive focal reducer) instead of 16~32 on APSC. Therefore when adapted lenses are very effective on long reaching on M43, e.g., a 50 becomes 100, a 200 becomes 400 but has a bigger penalty on wider end. Focal length of expensive ultra wide lenses would be doubled and become a standard lens...

If you need similar FoV of 10~20 on G7, suppose a cheaper Oly 9~18 can do. 7~14 f/4 of course is wider, has better IQ but cost more.

stonehedge007 wrote:

Hi Guys,

I just ordered a Lumix G7 with 14-42mm kit lens. Im awaiting delivery. But meanwhile i would like to know if i can use my canon EFS lenses with this camera using...

Speedbooster (electronic) ?

Viltrox adapter (electronic but little cheaper) ?

Manual ring ?

Manual ring with only aperture blades ?

These are the 4 options i keep seeing on youtube etc.

I mainly have a Sigma 10-20mm canon EFS mount and was wondering if i can use that on the G7. I just want to get a little more wider than the 14mm on the kit lens.

Can any of you help and advise ?

Not sure about the others, but EF-S lenses will not work with the Viltrox EF-M2 adapter (the focal reducer) without a physical modification at the lens mount end (trimming the lip that protects the lens element) that cannot be undone. You can find the details of what to do and how on YouTube. Only do it if you have no intention of selling the lens on, and even then some would regard it as a dodgy thing to do - forget any warranty cover for a start.

yes you could mount canon glass with the right adapter.

I do not use canon glass, so you will have to get help from someone else.

stonehedge007 wrote:

Hi Guys !

I got the new cam and i like it. At least for the 4K. I will take your general consensus and go with dedicated m34 lenses because based on what you guys say, i think ill only benefit on longer focal ranges rather than wider lenses.

In that light is there a prime 7mm or so which would cost quite less and is directly compatible with the G7 while giving auto-focus and aperture control via camera body ?

I'm afraid no.

stonehedge007 wrote:

Hi Guys !

I got the new cam and i like it. At least for the 4K. I will take your general consensus and go with dedicated m34 lenses because based on what you guys say, i think ill only benefit on longer focal ranges rather than wider lenses.

In that light is there a prime 7mm or so which would cost quite less and is directly compatible with the G7 while giving auto-focus and aperture control via camera body ?

If you are okay with manual focus/aperture, the cheapest rectilinear prime is the 8mm f/4 from SLR Magic ($170 new; was available a while back for $130), but its a softer lens with field curvature (although perhaps okay for video).

The Laowa 7.5mm f/2 is much sharper, but costs a lot more. Note Laowa is launching a cine version of this lens too (probably with declicked aperture).

My UWA budget solution personally was a Ricoh DW-6 0.79x wide adapter mounted with 37mm to 43mm step-up ring on my 12-32mm lens. Gives a 9.5-25mm with full AF and aperture control. Got the idea from this thread:

https://www.dpreview.com/forums/thread/3710447

Hard to find a DW-6 at a decent price (I found used one on Ebay), but it seems Adorama has some for $60.

https://www.adorama.com/us%20%20%201054183.html

In that light is there a prime 7mm or so which would cost quite less and is directly compatible with the G7 while giving auto-focus and aperture control via camera body ?

no most ultrawide primes are manual for m43 but many have aperture control on the lens.

the widest prime I know of is a 12mm that would be with AF

stonehedge007 wrote:

alcelc wrote:

stonehedge007 wrote:

Hi Guys !

I got the new cam and i like it. At least for the 4K. I will take your general consensus and go with dedicated m34 lenses because based on what you guys say, i think ill only benefit on longer focal ranges rather than wider lenses.

In that light is there a prime 7mm or so which would cost quite less and is directly compatible with the G7 while giving auto-focus and aperture control via camera body ?

I'm afraid no.

You mean as in, none that your aware of ?

No 7mm AF prime lens produced for M43 and so my answer is no. There are only limited MF option.

Because there are quite a few options no. The problem with the 12-32mm etc

Are you referring to the 12mm-32mm f/3.5-5.6 pancake Panasonic M43 lens?

is that they are all around 1200 USD in my country.

If so, it is selling around <US$110 in my city (grey market price). I suppose you could get one at similar price (or a little more) over the web.

Actually we rarely need to pay >US$1000 for a native M43 ultra wide~wide angle lenses. The following are offering price in my City (price in bracket is grey market offering as per https://www.price.com.hk/category.php?c=100043&brand=Panasonic&gp=14 ):

Pana Leica 12-60mm f/2.8-4 US$670~860 (US$600~720);

Pana 12-35mm f/12.8 Mk-II US$860 (US$640~700);

Pana Leica 8-18mm f/2.8-4 US$920 (US$850~720);

Pana 7-14mm f.4 US$900 (US$550~620);

Oly 7-14mm f/2.8 Pro US$900;

Oly 8mm f/1.8 fisheye US$650;

Oly 12-40mm f/2.8 Pro US$470~590;

Oly 12-100mm f/4 Pro US$960~1,200;

Oly 12mm f/2 US$500~590;

Oly 9-18mm f/4-5.6 US$500.

(P.S. the cheaper cost is because no tax in my city)

Considering the conversion valuation in my country for USD value wise that is like you spending 2400 USD in your country. Literally.

Another reason why i asked is. Why pay for a zoom etc if your ok with just one fixed focal length. My sigma 10-20mm was good on my 550d body and ive ALWAYS used it only at 10mm ever.

A prime lens, if either of the two M43 consortium members are going to produce one, it must be a fast speed lens. Because there is a cheap Oly 9-18 f/4-5.6 for the consumer class use, the Pana 7-14 f/4 for a step higher IQ and at the luxury end there is the Olympus Pro 7-14 f/2.8. As there are already f/4~f/2.8 coverage between 7mm to 14mm (many consumer class f/3.5ish to pro f/2.8 lenses covers the 12~18...), any ultra wide angle prime lenses with speed slower than f/2.8 becomes meaningless.

You could imagine how much an ultra wide angle plus fast speed lens would cost.

Until now, there are the Olympus 8mm f/1.8 fisheye, the Olympus 12mm f/2 and Pana Leica 12mm f/1.4 and none of them are cheap. The price could be much higher for a 7mm f/1.8 or f/2 lens if it will be made.

There is also a 8mm f/8 fisheye which has very limited use.

So i thought sometimes we could pick up a good branded lens which has just one focal length and be done with it.

Agreed. But at the end a zoom lens can always gives us more convenient than a prime lens can't offer. I am perfectly happy with my 7-14 f/4.

stonehedge007 wrote:

JakeJY wrote:

stonehedge007 wrote:

Hi Guys !

I got the new cam and i like it. At least for the 4K. I will take your general consensus and go with dedicated m34 lenses because based on what you guys say, i think ill only benefit on longer focal ranges rather than wider lenses.

In that light is there a prime 7mm or so which would cost quite less and is directly compatible with the G7 while giving auto-focus and aperture control via camera body ?

If you are okay with manual focus/aperture, the cheapest rectilinear prime is the 8mm f/4 from SLR Magic ($170 new; was available a while back for $130), but its a softer lens with field curvature (although perhaps okay for video).

The Laowa 7.5mm f/2 is much sharper, but costs a lot more. Note Laowa is launching a cine version of this lens too (probably with declicked aperture).

My UWA budget solution personally was a Ricoh DW-6 0.79x wide adapter mounted with 37mm to 43mm step-up ring on my 12-32mm lens. Gives a 9.5-25mm with full AF and aperture control. Got the idea from this thread:

https://www.dpreview.com/forums/thread/3710447

Hard to find a DW-6 at a decent price (I found used one on Ebay), but it seems Adorama has some for $60.

https://www.adorama.com/us%20%20%201054183.html

Hi Jake !

I found a DW-6 on amazon in my country costing USD 500.

There seems to be a Samyang 7.5mm for MFT mounts. I wonder if that would work to cover a 10x10 room from one corner of the room ? I dont mind panning a little too to get that on the video.

The DW-6 requires a 12-32mm lens though (which was included as a kit with my camera). You said 12-32mm is really expensive in your country, so it might not be an option for you. Here in USA, the 12-32mm is around $100-150 USD for a dekitted one (from people got it from a kit and didn't want to keep it).

The Samyang 7.5mm f/3.5 is a fisheye lens. It'll have very wide coverage, but lots of distortion.

The SLRMagic 8mm f/4 is probably the best option for you, if it's available in your country:

https://www.bhphotovideo.com/c/product/1322738-REG/slr_magic_slr8m4_8mm_f_4_lens.html