Mga idol, question lang, anong lens ba ang good upgrade from 35mm yung pwede i zoom out mga 20mm something na kasing sharp or mas better pa sa 35mm prime lens. yung may magandang bokeh, or mga 1.8 para sa D5100.
If you want a zoom lens that have F/1.8, there is only 1 lens, that's the Sigma 18-35 f/1.8 DC HSM, this is a unique lens that will work with the D5100. Good and sharp. It is very expensive.
Other lenses you might want to look at Sigma 17-50mm F2.8 EX DC OS HSM, also the Tamron counter part SP 17-50MM F/2.8 Di II VC, also Tamron SP 17-50MM F/2.8 Di II, These lenses will give you value for money, in sharpness, and overall usability in low light, and at events.
There is also a unique lens, the Tamron SP 15-30MM F/2.8 Di VC USD, is designed for a full frame that will work for a cropped sensor camera, like D5100. The price, however is also very expensive.
-- edited by RHEDD on Aug 30 2015, 09:12 PM