Lens Focus Test Chart1/29/2021
Actually though configuring autofocus might seem complicated at first, its really not.But theres no need to throw in the towel and send out your video camera back to the store to have its autofocus modified.With the us dot tune technique (AF finé-tuning), you cán alter concentrating yourself.
But very first you possess to discover out whether your video camera enables populate tuning. If your camera supports this kind of fine-tuning, after that youll also require the using: a zoom lens that itself offers dot melody assistance, a tripod, án AF finé-tuning plate or a printout of a size with identical spacing between the amounts or phrases (but a paper will furthermore perform), a remote cause or possibly a timer, sufficient lights for the surface youll be test-shooting, room, and persistence. Perspectives and Range Issue for Dot Tuning For correct AF fine-tuning, the distance between the assessment desk and the cameras needs to sum to 25x the lenss focal duration. If you use a 50mm zoom lens, the length between the tests table and the camcorder will become 50251250 mm i.e. Nevertheless when measuring the length, pay attention to one more thing. The testing table must end up being tilted towards the lens at a 45 position. So if you place it on the floor, its not plenty of to simply calculate the length between it and the camera. Based on where youve located the desk, you possess two possibilities for developing the needed position: Put the tests plate on the floor and tilt the camera towards it at a 45 position. Place both the video camera and the table at the same elevation, and tilt the table towards the camcorder at a 45 position. You can finé-tune your autófocus with us dot tune technique actually in improvised problems. Aperture Priority Will Help You to Finé-tune AF Dónt forget about to furthermore change your camcorder to manual focusing. If youre working with a Nikon video camera, youll also need to get one more stepset the concentrate to become linked to the rear trigger. In any other case you run the risk that this method will not really work correctly. As quickly as you possess the focusing, distance, and correct angle established up, switch your video camera to Aperture Concern setting (A or Av) and set a suitable ISO and the least expensive feasible aperture (or one phase increased if required). Then turn on the Live life Watch and focusing on a specific point (AF-S, OneShot). Then convert of the Live See and press the cause. For Nikon surveillance cameras, dont forget that you have got focusing switched to the rear button.) When the viewfinder displays an arrow rather of a department of transportation, you have got to boost or decrease the AF tune value. The arrow signaIizes that we have got the focus arranged in top of the stage weve selected. To rate up this technique, its greatest to fixed the worth to the highest one probable (elizabeth.g. Once you have a dot in the viewfinder, that indicates youre focused correctly. So its period to consider a test image and then conserve your configurations. Setting up AF on Zoom lens Lens When you require to fine-tune the focus on a zoom lens, you have to alter the configurations for its much and near focal points separately. ![]()
0 Comments
Leave a Reply.AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |