Hi Pimax community
as a backer of the 5K model i know there are some things different to the 8K models. However, these differences are usually not reflected in all informations provided by Pimax. I'd like to start this thread to collect and discuss all 5K specific information.
(All accessories are the same, HMD design is the same, both have CLPL displays)
Let's get started:
Now - after the survey has been released - we all got some sort of confirmation that initial shipping of 8Ks is expected in January and base stations as early as April. With the updates around CES2018 this holds still true in principal, while Pimax now say they will send a couple of backers an early version for review in January before starting mass production for later delivery. That mass delivery is roumored to happen in May 2018.
For the 5K model that was at some point said to ship in March at the earliest, this could lead to a production and shipping window between late February and April. Most likely Pimax will put the 5k production after final design of the 8k version, possibly before mass production of the 8k model, fingers crossed some next gen graphic cards will be availabe around then. Pimax will make some official statements about shipping plans till end of January.
Unlike the Pimax 8k or 4k this model won't become a retail product later on. There was some confusion about different versions. AFAIK this is based on the fact that for B2B there will be options to buy custom made 5k HMDs in large quantities. These could also feature OLED, but the KS-backer version will have the same CLPL tech as the Pimax 8k retail version, just with less resolution.
Displays and Lenses:
All that is confirmed is the CLPL technology for the 5k model too. The promise of irrelevant screen door effect (SDE) was also made for the 5k model but the 8k should still be better. The panel size is not known today, nor the contrast ratio, brightness and other display specs like back light.
So far the prototypes had similar lenses for the 8k and 5k models, most likely display sizes and lenses will be the same. Then power and heat should only be slightly less, brightness and speed better than with the 8k.
While the 5k display matches the native input resolution of 2x2560x1440 there is no confirmation for an integrated scaler yet, as it comes with the 8k model. The latter is said to be capable of up-scaling from (2x) full HD. Lack of scaler or bypassing it may improve photon delay, power and heat and/or refresh rate being more stable up to 90Hz.
Emotional Comfort Zone:
Since there is less money involved for backers there seems to be much less "shit my pants" reactions on bad news about the post campaign progress in Pimax 8k prototypes.
On the other hand there is the lurking doubt that in the end the resolution might not be just as good and the upscaling of the 8k model adds really to readability and relevant details in future applications.
For the time beeing it is safe to say the comfort zone for the 5k has been the better one...