The Vixen VMC95L is a flat-field modified Cassegrain, sold by Vixen; it is a sort of scaled down, low end version of their VMCs (20 and 26cm), which are designed as long-focus astrograph.
At 30cm long, 2kg heavy, the VMC95 can ride any light mount; the built-in flip mirror is a great help if the VMC is used with non-goto mounts (or with mounts whose goto capabilities are not much reliable), but also with goto mounts to adjust the frame; and while it focuses by sliding the primary mirror, my sample is totally free from mirror shift, which is noteworthy in a such low end product.
Unlike most other 3.5-4" CATs, the VMC95 features a rather large image circle, as can be seen by this master flat I took on an aps-c sized sensor
The field of view is rather flat, but not well corrected for coma; also, instead of the spikes there are fan-shaped "mists" which are in my opinion much worse to behold:
Probably even a skilled photograher will have a very hard time to get APOD-level pictures with the VMC, but for those in tight budget, with small mounts and simpler cameras (APS-c or smaller sensor) at 220€ it may be a decent option to take "instagram-level" pictures of galaxies and clusters