To allay concerns...
Caspar, as can be seen from the deep suspicion on her face on this photograph, is much less tolerant of being photographed than Bertie. Being considerably fleeter of paw and feistier of temperament than he is, once she has realised that a photography session is imminent she takes herself swiftly off to somewhere so dark that the camera can not make her out.
In any event, cats who are black, or mainly so, quickly exceed Lady Bracknell's skills as a photographer, tending to result in slightly disturbing images of a pair of glowing eyes surrounded by an amorphous black mass.
Bertie (despite his size) is still growing up and his appearance is constantly changing. That fact, combined with his willingness to pose, and the impact of his youth on his behaviour, renders him subject to very frequent sessions with the camera. That Caspar is above such things should not lead anyone to suspect that her presence in Bracknell Towers is not greatly valued.
Lady Bracknell has hopes of one day managing to photograph Caspar holding Bertie down and forcibly washing his ears. However, given that
- Lady Bracknell does not herself move very fast; and
- Bertie's tolerance of said imposed ablutions is distinctly finite
readers would be well-advised not to hold their breath, entertaining though the spectacle undoubtedly is.