[okie01]

Aren't there two other ways out of doing the job?

Quote a prohibitive price.

Plead a previous engagement that day. Or a planned day off.

You don't have to tell a customer you don't his/her business because they're queer.

[Jonty30]

That wouldn’t work. What the activists would do is to establish a pattern of discrimination by showing straight couple were accepted, but homosexuals were not.

[Steve_Seattle]

"Aren't there two other ways out of doing the job?"

Your alternatives require that the photographer lie, which might also violate their Christian values, and also has the disadvantage that gays could sense the deception, make repeated requests for service, be denied every time, and thus find out the true reason for the refusal of service.

[Steve_Seattle]

"Aren't there two other ways out of doing the job?"

As I said before, I don't think your ideas would work. But one that might work is for the photographer to say, "I think gay marriage is a joke, but I want your money, so I'll do it, laughing all the way to the bank." Say nothing about religious beliefs. After they hear that, they probably won't want to hire you, but you haven't broken any law. They cannot sue you for your opinion abut gay marriage, only for the refusal of service.

[cableguymn]

till they call and say it’s a straight wedding and find out that day is all of the sudden open.

“no” is my standard answer when I don’t want to do something for any reason business related.

[donmeaker]

In the old days you could merely forget to remove the lens cap or forget to load the right kind of film. Show up, charge them for your time. Set up the lights. Insist on payment for your equipment and time.

Not your fault that they didn’t like the photos...

[Big Giant Head]

Quote a prohibitive price.

Here is the winner. Post the prices on a menu board, up front. Gay wedding? That is going to set you back six figures. To pay for future lawsuits.