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ddk632 · 01-04-2013, 09:08 AM

Hard to answer with the information provided.

30mm is considerably wider, but I found it perfect on a crop for creamy bokeh and thin DoF, this was with Sigma 30 f/1.4 EX DC which is a crop-only lens. Is that the one you're asking about?

On FF, 50mm would be similar to 30mm on the crop, so I'd go for that for a similar field of view. Although the new Sigma 35 f/1.4 looks really tempting from all the images I've seen!

01-04-2013, 09:08 AM	#2
ddk632 First Lieutenant Drives: 2013 BMW X6M Join Date: Mar 2012 Location: South Florida Posts: 384 iTrader: (0) Garage List 2013 BMW X6M [5.00]	Hard to answer with the information provided. 30mm is considerably wider, but I found it perfect on a crop for creamy bokeh and thin DoF, this was with Sigma 30 f/1.4 EX DC which is a crop-only lens. Is that the one you're asking about? On FF, 50mm would be similar to 30mm on the crop, so I'd go for that for a similar field of view. Although the new Sigma 35 f/1.4 looks really tempting from all the images I've seen! __________________ ddk632 My flickr \| Motorcycles and DSLRs on flickr Last edited by ddk632; 01-04-2013 at 09:16 AM.