nnowak

@Gannon Burgett: If we are making a list, could I please put in a request to have the Canon EOS M2 mirrorless camera added to the database? Thank you.

Lens looks great. Now, the real question... when will DPReview finally add Viltrox to the product database?

It is not motion blur. The image is just badly out of focus as the camera chose to front focus on the shoulder instead of the face.

Canon may, or may not, have a case, but Canon would need to have some specific patent infringement claims for the cease and desist to have any meaning. Canon can not just send a vague letter stating "stop or you will be sued".

It could be something as simple as the geometry of the RF mount being patented.

Umm, that is exactly what Sigma, Tamron, Tokina, etc. do. All third party EF and F mount lenses use reverse engineered protocols. Openly sharing protocols with third party manufacturers is only a recent development with the mounts like E and m4/3.

I am curious what patent is supposedly being infringed upon.

The RF mount supports high speed communication with native RF lenses and is backwards compatible with the slower EF protocol (like a USB 1.0 device in a 3.0 port). I am 99% sure these third party lenses with the RF mount are all using the older EF protocols. The RF protocols have not been reverse engineered and are not being used in these lenses. Basically, they behave like an EF lens with the RF adapter permanently attached. The fact that the Viltrox lens identifies itself as an EF 85mm f/1.8 reinforces that notion. Third party lenses identifying themselves as an existing EF lens is nothing new and has happened in the past with other manufacturers, including Sigma. It does not mean the entire lens firmware was stolen. Only the lens ID is reused so the camera can know the minimum aperture and focal length of the attached lens.

EF patents have expired years ago. Are third party EF to RF adapters are also illegal?

For anyone suggesting using only the diagonal, NO. That only works when you are talking about sensors with the same aspect ratio. My flatbed scanner has a sensor with a 215mm diagonal, but it is just a single line. Especially with video centric devices, aspect ratios can deviate pretty far from 4:3 or 3:2.

While it is a bit clumsy to type, height and width dimensions work for every sensor and are easily interpreted by anyone.

1. Will the general population understand the number(s)?
2. How hard is it to calculate the other numbers?

Almost everyone understands length. Area and diagonal, less so. Only hardcore photo nerds understand crop factor. Area, and crop factor are nebulous numbers that only really make sense in comparison to another sensor.

Area, diagonal, and crop factor are meaningless without also knowing the aspect ratio. By knowing the length of both sides, all other values can be easily calculated. Using the aspect ratio along with diagonal or area, you could also calculate the other values, but the calculations are more difficult for the average person. Crop factor makes the least sense because you need to first know the dimensions of a full frame sensor before you can calculate any of the crop dimensions. Crop factor is also bad because it is defining all sensors in relation to an arbitrary standard, which is exactly how we got in this mess in the first place

If Gordon returns, I think we also need to meet Chris's twin Kris who happens to love 35mm focal length lenses.

mpy, My OEM Fuji XF, Nikon F, and Canon EF caps all feature raised text and are not indented like your Sony caps.

I think there is a bit of false advertising going on here. Every OEM rear cap that I own has raised text in the center area of the cap, yet these stickers are all displayed perfectly flat without any wrinkles. Are they using featureless generic caps or sanding OEM caps perfectly smooth?

Does anyone know how widespread this problem actually may be? Sony has been selling well over a million mirrorless cameras a year for several consecutive years. The A7 III was launched over three years ago and has been one of Sony's more popular models. The 1320 people that signed the Change.org petition could theoretically represent less than 0.1% of the total user base. That is 1 out of 1000 for those that have difficulty with percentages.

@André BARELIER
My first DSLR was a Kodak DCS 460 which launched in 1995. I picked one up used a few years later. I also have a couple X-Trans Fuji cameras which DXO continues to ignore.

"it can also be used to revamp photos taken by less advanced cameras from the start of the digital era" That is only true if your older cameras are supported. Sadly, mine are not. Then again, some of my more recent cameras are also unsupported.

For anyone else interested, here is the link to supprrted cameras. https://www.dxo.com/dxo-photolab/supported-cameras/

I wish there was a 58-72mm version that took 77mm filters, but a really clever design nonetheless.

@LenneMC - I have no idea where you are getting your statistics, but they are not even close to reality. So far for all of 2020, there have only been 239 total homicides in Chicago. Of that 239, only 95 were gunshot victims and that is across all races and genders.

Unfortunately, they are largely unregulated. The Federal Communications Commission (FCC) has jurisdiction over broadcast TV as it uses the public airwaves. Cable and Satellite broadcasts are paid/private sector services which leaves them largely outside the reach of the FCC. General libel laws are about the only form of recourse. Internet streaming services would also fall into this same loophole.

While it is not much solace, the flip side to this lack of regulation makes shows like Game of Thrones possible as it could never air on broadcast TV in the USA.

This article is missing any mention of the free versions of Capture One software. Capture one basically has 3 levels:
1. Capture One Pro (subscription or perpetual) that supports all functions for all cameras
2. Capture One Fuji/Nikon/Sony (subscription or perpetual) that supports all functions for a specific manufacturer's cameras
3. Capture One Express Fuji/Nikon/Sony that is completely free software that supports a limited set of functions for a specific manufacturer's cameras.

For example, if you shoot Canon and Nikon, you would need Capture One Pro (Option #1). If you only shoot Nikon, you could choose between the paid and free versions of the Nikon specific software depending on which features you need (Options #2 or #3).

Capture One does not prominently advertise the free versions, but it is available here - https://www.captureone.com/en/products-plans/capture-one-express

Not positive but I think you can move between versions with just a code, no additional download needed

While Canon is #1 in Japan for mirrorless, the last global numbers I saw had Canon in third place behind Sony and m4/3. Fuji was a very close #4

The X-A7 and X-T200 may have the "best" screens, but they are still just an uncalibrated 1280 X 720 TFT LCD