1_Fo­cus lock

Even the most so­phis­ti­cated aut­o­fo­cus sys­tems need you to take con­trol in or­der to fo­cus on off-cen­tre sub­jects

NPhoto - - 10 Things To Master -

Po­si­tion­ing your sub­ject off-cen­tre is one of the best ways to im­prove the com­po­si­tion of your shots, but you need to make sure that your Nikon fo­cuses on this area rather than what’s in the mid­dle of the frame, oth­er­wise you could end up with your sub­ject out of fo­cus and your back­ground pin­sharp (a prob­lem com­mon to com­pact cam­era users). With static sub­jects, the eas­i­est way to do this is to use a tech­nique known as fo­cus lock. com­po­si­tion by po­si­tion­ing the sub­ject in dif­fer­ent ar­eas of the frame. Once you have locked the fo­cus, you can po­si­tion the sub­ject any­where in the frame, and as long as you re­main the same dis­tance away, it will be sharp.

This is use­ful on cam­eras which have a limited num­ber of AF points, as they only al­low you to fo­cus on a limited num­ber of ar­eas within your scene. Us­ing fo­cus lock, you can place the sub­ject in ar­eas of the frame where there aren’t any suit­able AF points. (AF-S). Then, frame the scene so your sub­ject is in the cen­tre and half-press the shut­ter re­lease un­til the cam­era fo­cuses. You can then re­com­pose your im­age so that the sub­ject is any­where in the frame, but you must keep your fin­ger half-pressed on the shut­ter re­lease, and make sure that you don’t change the dis­tance be­tween you and the sub­ject. Then, once you’re happy with the com­po­si­tion, you can press the shut­ter fully to take your shot. Like many au­to­matic func­tions, the au­to­matic AF point se­lec­tion can work per­fectly well, but it doesn’t al­ways pick the AF point that cor­re­sponds with the thing that you want to fo­cus on. You’ll get more re­li­able and con­sis­tent re­sults by choos­ing the AF point man­u­ally (see Tak­ing it fur­ther), or sim­ply leav­ing it set to the cen­tral AF point and us­ing the fo­cus lock tech­nique de­scribed above.

Newspapers in English

Newspapers from Australia

© PressReader. All rights reserved.