Hi Deb and welcome to the forum:
I am sincerely sorry to learn of your situation, and want to assure you that we will all do our best to help you. I went through a similar situation with a good friend who passed away and left his wife to deal with his gear. It was very hard for her and I ended up sorting out and arranging for the sale of the equipment, so I have some idea of how hard this can be for a partner.
The first thing to do is get an inventory of the equipment left behind. Depending upon the model, age and condition of the equipment, it may be worth quite a bit, but a detailed listing will help to clarify that.
Assuming you are in the US (and I am not), I would recommend the following:
1. If your husband was a member of a local photographic society, or had friends who were fellow photographers, see if they will help you get a detailed list of the gear. Desirably, this should include the Make, model, serial number and if there is a receipt, especially for the newer equipment - this latter is because a proof of purchase may confirm if it is still covered by warranty, which has some value.
Consider contacting a local camera store and see if they will help you with the inventory on the premise that you will put at least some of the gear for sale on consignment through them.
If you can get this information, there are several sites in the US that sell camera equipment. One is https://KEH.com. You join, and they have people who will help you and guide you through the process of listing your gear. They will give you prices to buy your equipment.
I am sure there are other outlets, depending on where precisely you are located, and my associates will doubtless have much more information to offer you.
We are all here to help.
cheers, TREVOR
The mark of good photographer is less what they hold in their hand, it's more what they hold in their head;
"All the variety, all the charm, all the beauty of life is made up of light and shadow", Leo Tolstoy;
"Skill in photography is acquired by practice and not by purchase" Percy W. Harris
