Projector Not Showing Full Screen Mac

We use this projector screen in our church activities.

Having owned an 8 core Mac Pro since 2008, I had some reservations about the new design. I had visions of endless cables and peripherals that would clutter my precious desk space. With a little thought and reorganization, this hasn't proved to be a problem. For my primary interest, which is photography, the new 6 core Mac Pro is much faster than the old one. It is also much quieter. I chose the 1 TB drive and I added 64 GB of RAM. I also chose the faster clock speed of the 6 core (compared to the slower 8 and 12 core). This makes sense because PhotoShop doesn't use more than 6 cores anyway. The only problem I have run into is obtaining full screen resolution when connecting my NEC PA271W monitor to a Thunderbolt port. Using the Apple Dual DVI to Thunderbolt adaptor, there is a throttling of the signal so that screen resolution cannot exceed 1920x1080. After several hours of talking to Apple technicians and finally to NEC support, I discovered that the only way around this is to use a Display port to Mini-display port cable which enables full resolution to be displayed. Now I have access to the full potential of this elegant and amazingly fast computer.

Gives the most distortion on a full frame camera before showing any vignette.

I wanted a projector for business use (spreadsheets) but also for showing photography. I have only used it for the first use so far, and it looks sharp, clear and bright. It is not highly adjustable for image size, so you need room to move it forward and back to get the projected size you want. It does not have the ability to compensate for projecting at an angle to the side (sideways keystone?), which is useful and available on some projectors. It does compensate for vertical keystone. Note that it does not come with a case, other than the box.

I installed them next to my projector screen and they sound great.

Works great with my Mac computer and Sony 4K projector!!

Anyone looking to extend there monitor onto a TV screen or projector this is the way to go.

Using this to decode an NDI source to a projector in Church services with live stream. We previously were sending the Presentation Laptops screen to the OBS computer via NDI, and used a separate proprietary wireless video feed to the main projector. Got this so we can use the same NDI source for both and eliminate the wireless projector feed. It is working well. One thing to be aware of: the projector will display will go blank in a couple of seconds if there is no video and audio activity when using NDI Screen Capture as the source. This can be an issue during power points with static screens. You can set the decoder to keep the last thing displayed on the screen or allow it to go blank. I prefer it to go blank so I know something is wrong right away. You can also resolve by making sure the NDI Screen Capture is using an active audio source (like the microphone). This decoder has been reliable and is reasonably priced. Perhaps other decoders won't have the inactivity issue but they are also more expensive. This has not been a show stopper for us.

Works great to connect my ancient mac laptop with a brand new projector-

I use this lens for real estate video! It is great on a full frame camera for showing spaces.