ronjay Loc: york Pa.

I have a Canon D90 and just purchased a 6D Mark II .any suggestions on a wide angle lens for the FF. I have a 24-105 L.looking for a zoom which is wider.Thanks

CHG_CANON Loc: the Windy City

The single best option is the EF 16-35 f/4L IS. You can go faster and heavier and more expensive with the f/2.8, but you lose the IS support. You can go wider and much more expense and very unique images in the EF 11-24 f/4L, but the IS version is the sweet spot of sharpness, focal length, size, weight and cost. The 17-40 f/4L is great image quality for a lower L-series price, but again you lose the IS support, if that's important for your use-it-everywhere needs.

jerryc41 Loc: Catskill Mts of NY

Lots of choices, but Tokina makes an assortment of good W/A lenses at reasonable prices. I have their 16-28mm FX. I thought I had a wider one, but the 16-28 is the only one in my list. Yes, I used to have an 11-16mm DX, which is the equivalent of the 16-28mm FX.

https://www.google.com/search?q=tokina+lenses&rlz=1C1CHBF_enUS925US925&oq=tokina+lenses&aqs=chrome..69i57j0l9.2703j0j9&sourceid=chrome&ie=UTF-8

jayluber Loc: Phoenix, AZ

I love my Sigma Art 14-24. I use it for MW. f2.8

twosummers Loc: Melbourne Australia or Lincolnshire England

I use the Canon EF 16-35 f/4L IS lens for almost all of my real estate work. It's rarely off my camera. I'm hoping the RF version will be available soon. This is a great lens I must say.

larryepage Loc: North Texas area

Extreme wide angle photography involves a lot more than just putting a short focal length lens on your camera. The best choice depends a lot on what you plan to do with the lens...what kind of photography you want to do with it. If you have given that any thought, you might share a little more information with us. There are tons of used wide angle lenses for sale by folks who used them a short time and then decided that they really didn't need or want them nearly as much as they first thought.

PHRubin Loc: Nashville TN USA

Also note, the widest (lowest mm focal length) zooms are for APS-C only and will work fine on the 90D but not on the 6D MII. If you intend it for use on both, make sure it is an EF, not EF-S or specified as full frame. Canon "L" series are for full frame. Do not go for M or R series, they are for mirrorless ONLY.

adedeluca Loc: holbrook ny

I just bought the canon 16-35 mm as per Chg-canon info

It is great

starlifter Loc: Towson, MD

I use a Tamron 15-30 2.8 G2. Good solidly built and has VC. Does a great job.

Blurryeyed Loc: NC Mountains.

I agree with this, there are some really great wide angle lenses on the market for your 6DII but probably the best value for the money is the 16-35 f/4 L, not only does it have IS but also it has a threaded filter ring which makes the Canon wides a bit unique in the wide angle offerings. Unless you are shooting low light f/2.8 is unimportant for a wide angle lens, if you are doing landscape which is by far the most common use for these lenses you will be stopping down for increased DOF so the f/2.8 really is not a factor. You can buy a Sigma 14-24 f/2.8 which is bigger and much heavier that you can buy a Haida rear adapter for that will allow the use of their ND filters which comparatively are very inexpensive as compared to the cost of 77mm screw in filters. I have both lenses and although if you pixel peep the Sigma may edge out the Canon it is not something that you would ever see in just looking at photographs. The Canon for you in my opinion is still the better choice, I shoot with a Canon mirrorless and have the adapter with the polarizing filter in the adapter, for you to use a polarizer on the Sigma or even the Tokina which is also a great value you would have to buy a large square filter adapter system to accommodate the polarizer that would run hundreds of dollars. Lastly the Canon does not have the large bulbous front element, that is why it can use screw on filters, but this also helps to reduce flare when shooting towards bright light sources such as the sun.

Another great choice is the Sigma 12-24 Art, or even the non Art version, it is clearly wide enough to use on both of your bodies but then you will not only lose the IS but also the ability to use screw on filters.

Brian in Whitby Loc: Whitby, Ontario, Canada

Is is less important with a wide angle lens so I would not let that be a deciding factor.

GoofyNewfie Loc: Kansas City

...IT being stabilization?
I find this to be true as well.

(Helps to use the “Quote Reply” option to give context to your post”

CHG_CANON Loc: the Windy City

"IT" can be really useful, making this IS-enabled lens a do everything / everywhere lens:

https://www.uglyhedgehog.com/t-690844-1.html

47greyfox Loc: on the edge of the Colorado front range

Another vote for the Canon EF 16-35 f/4L. Often available on the used market as well as refurbished on Canon’s website.
https://shop.usa.canon.com/shop/en/catalog/ef-16-35mm-f4l-is-usm-refurbished

jackm1943 Loc: Omaha, Nebraska

I agree with everyone regarding the Canon EF 16-35 f/4L IS, it's a great lens and is on my 6D2 much of the time.