Magmod has a great concept that use magnets embedded in a thick rubber band (Mag Grip) that attaches to your flash head to make it easier to switch out the different modifiers needed on a regular basis. Currently they offer several different attachments from snoots, grids, spheres, bounces and a few different sets of gels. With a new product called a Mag Beam in development.
I have purchases and used for Vagabond Photography the snoots, grids, gels and sphere. When I first started to use them I noticed the Mag Grips seemed tight on my Nikon SB-800s and I did have a slight fear that it might somehow damage the flash head. My fears were unfounded before putting them on I stretched them out a little and have had no issues. They have been attached for two months with no issues. As I stated they do fit quite snug which is a good thing cause when you a moving around the flash head one does not want them to slide off or back causing the modifier to fall off.
Each attachment that I have bought does have the ability to place a gel card into each unit. This is a big money saver, by not having to buy a separate Mag Gel 2 kit if you want to run a gelled light on more than one flash head.
The snoot is also very versatile by being able to change the distance from the flash head one can change how broad the light striking the subject is. It is also very useful in hair lighting when you are trying to pop ones subject out from the background.
The only slight down side I have found is the Mag Grip does add about ½ to ¾ of an inch to the left and right side of the flash head which being used in conjunction with my traveling soft box(SDMV Diffuser) makes it hard to fit though the hole in the back of the soft box.
In the past I have used grids and gels that use a velcro and heavy cloth to hold in their grids and gels to the flash head. The problem here was over time the vibration and movement would cause them to fall off and slow our sessions down. After dealing with this issue though two other companies I decided the switch to Magmod was and has been the correct choice.
I cannot recommend this company enough, if you have the time check them out and take the time to use and get to know their product line.
*Please note that we at Vagabond Photography has in no way been paid or sponsored to give reviews about products or companies read in our blog postings.