Jump to content


Photo
- - - - -

2 X Subsee +10 stack together !


  • Please log in to reply
25 replies to this topic

#21 kc_moses

kc_moses

    Tiger Shark

  • Member
  • PipPipPipPip
  • 631 posts

Posted 04 February 2015 - 10:25 AM

Thanks Puffer Fish, since I never use SMC before, how do you test if the diopter do great for contrast focus or not? For the CMC-1, the chart listed it as 74mm working distance. If the Aquako is less than that, does it consider good or bad? I thought when come to UW photography/video, you want to get as close as possible.

 

Sorry I'm still new to macro and I'm going to Anilao next month, so I'm stressing out about absoluting getting the right tool before the big trip.



#22 Puffer Fish

Puffer Fish

    Clownfish

  • Member
  • Pip
  • 25 posts

Posted 04 February 2015 - 11:54 AM

Ok, lets see if we can make this less stressful.

 

First off, I am guessing that the cmc is used by zooming all the way out, and using that for macro (P&S lens normally have their macro with the lens at the widest field of view).  If so, then one gets a greater working distance, but that is true with any wet lens.  Usually, it is best to have the lens as close as possible to the macro lens (which can be zoomed out or something close to being zoomed out, just watch how the lens move as you zoom)

 

You need enough working distance to protect your port and allow you to get lighting on the subject...so around 2 inches (or 50mm) is a very good number.  Depending on the port size, you might be able to go down to around 40mm or so.

 

If you had the Saba, subsea and SMC, you can actually see the difference between a high contrast and low contrast lens.  Higher is better with contrast detection systems.  All can take very nice images..but the lower  the light, the less clear the water and the lower the contrast can make focus more difficult.  Higher is better, but all work for at least 70% or more of the time.  Saba was the worse, subsea next and SMC the best I have used (so far).  This is a glass issue for the most part.  It was easy to see the difference between the SMC and the Saba, but not so with the subsea.

 

I think Aquako, used the same as the CMC should produce very similar magnification (a bit better) and should work fine.  I would go with that for now.  

 

Learning to use a high power macro is a bit difficult unless you have had a lot of experience with weaker ones, so everyone will have a steep learner curve.  Just have fun and enjoy.  Oh, and remember..start with the camera lens as far out as it goes....use the highest F stop you have and move the camera first to get focus.  After that, it is practice.



#23 kc_moses

kc_moses

    Tiger Shark

  • Member
  • PipPipPipPip
  • 631 posts

Posted 04 February 2015 - 12:03 PM

Thanks! A lot of it make sense now. I was comfortable using a +7 before. This time I'm bringing a tripod that's why I want to try out super macro. Super Macro on a point & shoot could be challenging, but I like this kind of challenges, as long as at the end of the day I can solve and learn from it.



#24 Puffer Fish

Puffer Fish

    Clownfish

  • Member
  • Pip
  • 25 posts

Posted 04 February 2015 - 12:17 PM

If you have used a +7, you will do fine.  By the way, hand held works with all of super macro lens...one just has to be very, very stable.



#25 kc_moses

kc_moses

    Tiger Shark

  • Member
  • PipPipPipPip
  • 631 posts

Posted 04 February 2015 - 12:32 PM

He he, I'm shooting video, hand held won't cut it especially I don't want my viewer to get motion sickness. :lol2:



#26 Puffer Fish

Puffer Fish

    Clownfish

  • Member
  • Pip
  • 25 posts

Posted 04 February 2015 - 12:41 PM

Excellent point.