Abe's of Maine offers the Sigma EF-610 DG ST Flash for Canon Digital SLR Cameras for $134.95 with free shipping.

What makes this deal hot:
You save a total of $20 off of the retail list price. That's the lowest price we could find currently.

What this does & Why you need it:
This flash features include guide number of 61 which translates into 61/m (200/ft), designed to work with the latest TTL auto exposure systems, auto zoom function automatically sets the optimum illumination angle, takes four AA alkaline batteries and more.