Dear Nikoneers, I own an F70, and tired of consumed a lot of batteries by using the retractable flash. I am looking for a flash, hopefully it will be SB-24 or younger (25,26,27,28...). Can anybody tell me the features I can exploit using each of those flash? I have been offered one second hand SB-24 and SB-25. Considering the price, I would like to go for SB-24, but I wonder, does the Sb-25 possess the extra features that can't be found in 24? Furthermore, can my F70 utilize those features? Please Advise. IBeNimages *******************Internet Email Confidentiality Footer******************* Privileged/Confidential Information may be contained in this message. If you are not the addressee indicated in this message (or responsible for delivery of the message to such person), you may not copy or deliver this message to anyone. In such case, you should destroy this message, and notify us immediately. If you or your employer does not consent to Internet email messages of this kind, please advise us immediately. Opinions, conclusions and other information expressed in this message are not given or endorsed by my firm or employer unless otherwise indicated by an authorized representative independent of this message.