I own Nikon D3300, which I bought it along with 18-55mm f/3.5-5.6. I am complete newbie and till this time I was shooting in auto mode. Recently, I learned about Aperture, Shutter speed and ISO settings.
Next month I am traveling to Bali, where I'll encounter beach, meusume, park, mountains etc. I will be looking for some shot focused on face with blur background while some of them with no blur. My subject will be near/far. Most of the shooting will be done in sunshine. As per my knowledge, I would be needing f1.2+ till f4.0 lens to control depth. But when I search for these lens they came with 35mm.
For far subject, I am planning to buy " Nikon AF-S DX NIKKOR 55-200MM F/4-5.6G ED VR II " or 70-300. Here are my question:
Generally, the longer your lens it set (say at 100mm with wide-open aperture) the further away you can be while maintaining an out of focus background.
However something to think about is "Beach" photography will be VERY, VERY well illuminated, so in order to maintain a wide enough aperture to do this you will need both a low ISO (100-200) AND a strong ND filter (say 8-stop)
You don't want to be swapping lenses on the beach, so pick a good quality "all rounder" lens, I would suggest the 18-55 for the beach and the 55-200 for "far subjects".
The ND filter is the key to wide apertures outdoors.