90% of the porn produced today takes minimal camera skills. With a light meter, reasonable set of lights, for video and stills, 2 good cameras, decent off camera mike and a little practice most should be able to master the skills required to shoot everything up to a low end Glam niche level. In terms of the image.
Learning how to separate the background from the model, high lite certain areas on the model, eliminate flair, depth of field are all things a light meter costing a few $100 will get right for you.
For instance.
Separating the background from the model.
With the light meter set the background to 1/2 to 1 stop over the subject by directing the light meter at your light source. You can also light the back of the model with a rear light pointing down at her, the light positioned behind and above her. Or a light to the side/rear of her. That's the simple way, there are others that are not really required. Every location will be different and determine the placing of the lights. Get this right and your up in the top levels of porn.
High lite certain areas on the model
Not used a lot today. It's how a shooter gets the glow on the models head, or/an side. Carefully placing your light source and setting the power to above the power of the main lights hitting the model will soon achieve this effect. Use a light meter.
Eliminate flair
This is caused by reflected light hitting the background and bouncing back into the camera lens. Most light meters have a special viewer or the ability to remove the white cap over the meter part. Read the manual the meter came with. Stand where you will stand to shoot and read the reflected light off different areas. Then adjust your lights positions accordingly. Use the technique of imagining a mirror behind the model. If you can see the light from where you're standing. You are in the path of reflected light. Setting lights high as possible and at angles will eliminate this. Using a hood over the lens will help.
Depth of field
Is the area of sharp focus and if the site wants to deliver huge images the depth of field is important. It's governed mainly by the lens F Stop. F2.5 will give very little depth of field and not recommended for all but the most skilled. F16 will give a good depth of field and recommended for most.
Someone was asking about gels recently, these will tint the light. Useful piece of kit if you arrive at a location with bright red or yellow walls. Still white balancing a camera will help as well. They are great to give a background a bit of color, warm up a cold room. The light temperature not the actual temperature.
Now all you have to do is adjust that to the niche. You're not going to be taking on Suze Randall or Hank Londoner, so most of you will not need much more info. Seriously most can get this right with some practice.