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My rig can not use manual focus, so I only use autofocus with the 3-D tracking system.

The depth of field of every macro lens is very tiny. Most of the time, I have to use f/16 or f/22. The important thing is to focus sharply on the right part of the subject. Here are the pictures I shoot with 105 Macro...

Here in Asia Pacific, my students get only e-card (in my PIC online shown only e-card options).

Since April 2020, PADI issues only electronic c-card to the students in most part of the world. You can sign-in to PADI apps and check your certification level.

A friend of mine accidentally broke his housing, and we live in Thailand. A push-button was broken in 2 pieces as attached pictures. 1) Can I order the push-button, c-clip, and o-ring to replace it myself? 2) Which SKU number should I order from Ikelite? Regards,

push button

push button

Ikelite Housing

If you are going to the interchangeable lens camera road, there are many things you have to concern. 1. Which lens you will use in wide-angle (mostly are fisheye lens) and macro photography? 2. Does your camera can use those lenses properly and full functions? 3. Is there any housing for your...

The aperture value on the strobe is just for increase and decrease the output power in manual mode. Most of the cases the aperture value on strobe and camera do not relevant. Just think that the more number, the more power output.

1. Turn your camera to manual mode and fix the ISO to the lowest (100 or 200 depend on camera model) 2. fix you aperture to 5.6 or 8 on compact camera, or 8 or 11 on MFT, DSLR camera. 3. Switch on the strobe to non-pre flash or pre-flash (depend on you camera) . 4. Turn the power adjustment knob...

Professional means that you shoulder other people's life. Your profit comes with very high responsibilities, accountability, and dedication. If you don't want to take any responsibility, stay away from the Pro and just enjoy the beauty of the underwater world.

I used Extra Diver Qantab last year and got very excellent services.

This guy used Z7 + 14-30 s in Nauticam housing. Some underwater photos are here NIKKOR 14-30 S F4.0

1) Make sure that you truly understand the meaning of "objectives", "values", "main points", "key points" and "objective test". 2) Be familiar with the presentation structures for classroom presentation, confined water teaching, and open water evaluation. 3) Know how to grade your presentation...

1. Set your setting to M, shutter speed = 1/125, F 5.6/ ISO 200 or if you use AV set shutter speed to 1/125 and "fix ISO to 200" 2. Set your flash in camera to TTL 3. Set Strobe mode to TTL 4. Try a macro shot and check your picture 5. Never use TTL for wide angle, use manual mode instead

Spontaneous Pneumothorax is an absolute contraindication for SCUBA diving.

Skin Diving Ditch & Recovery, Scuba Ditch and Recovery and Scuba Bailout are NAUI leadership skills. Your instructor probably thinks that you have potential to go to professional level.

Set ISO to 100 or 200 and adjust your strobe power instead. Aperture (f 8 or 11), Shutter speed (1/160 - 1/200) and ISO (100 or 200) should be fixed for ambient (background light). Then adjust strobe power for lighting foreground or subject.

Since Ikelite housing for DSLR only communicate with strobe sync cord (and manual mode only not TTL), the strobe must be Sea&Sea YS-D2 or Inon Z-330, 240 which have sync cord connector. For me, I've owned Nikon D5200 + Ikelite Housing + 2x S&S YS-D1 and never use TTL neither wide angle shot...