The Standard Deduction for Married Filing Joint is $24,000, plus an additional $1,300 for each Taxpayer over 65 or Blind.
So it sounds like $26,600 is the correct Standard Deduction for you if you are Married Filing Jointly and both you and your Husband are over Age 65. [$24,000 + $1,300 + $1,300]
If I am misunderstanding your question or you need further clarification, please comment below.