I wish I had my camera. vs I wish I brought my camera.

[Saneta]

There is the following situation in my grammar book:

,, You are walking in the country. You'd like to take some photographs, but didn't bring your camera.
You say:........''

I would write after You say:,, I wish I had my camera'', or ,,I wish I brought my camera'' because the situation is present, not past, but the reply in my book is: You say:,, I wish I had brought my camera''.

Who has right, I or my book? there is an error in my book? If my book has right, please tell me why.
Thanks a lot for help!!!

[Natasha81]

Look, you are right about relation to the present and past in conditional sentences. But: "I wish I had my camera" means :it is a shame, I don't have my camera with me. And here is the other sentence "I wish I had brought my camera with me".- It is a shame I did not bring my camera. As you can see, Present tense in the first sentece and past in the other one. If you go one step back, as the conditional sentences require, you will get I wish I had my camera and I wish I had brought my camera. The book seems to be right:)

[Basu]

please help me anybody when use 'this' and 'it' what differnce between this and it

[Berlinder]

it is not at all a shame, it is just regretting, repenting.