I can't figure out the difference between these two really. Well I noticed some things, but I have no idea which is better w/out guessing by price. There's one labeled Tamron 70-300mm f/4-5.6 DI LD 1:2 Macro found here: http://www.beachcamera.com/shop/product.aspx?sku=TM70300DINA The other is labeled Tamron 7-300mm 1:2 f/4-5.6 LD Macro FS=62 AFD found here: http://www.beachcamera.com/shop/product.aspx?sku=TM70300LDMCRNA The first one has the DI designation for digital cameras. The second is for both film and digital. The second one has a different looking outside as well as $30 higher price tag. The cheaper one mentions internal multicoatings and the more expensive does not. The only other thing I noticed is the cheaper one has a minimum aperature of 32 while the other is 22. The length and weight are different as well. With only really a F=62 designation and the model number different I couldn't find anything online either. If anyone has any info please let me know. I'm wanting to buy one of these with another tamron lens and a digital SLR, but want to make sure I get the best I can afford.