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bvanant

Member Since 01 Apr 2002
Offline Last Active May 16 2016 05:12 PM
*****

#373561 Wee yellow things on wee black stuff.

Posted by bvanant on 12 May 2016 - 02:31 PM

A very interesting little beast with very cool sexual trimorphism. 

http://www2.nau.edu/...S.M. 1987_2.pdf

 

Bill




#369345 Best option to backup and view RAW pictures while travelling?

Posted by bvanant on 15 January 2016 - 06:40 PM

Laptop is my choice, lets me do real editing (haven't tried the surface pro) on the fly, macbook air is light and relatively fast, my wife uses it for video editing (Final Cut Pro X) as well.

Bill




#368955 Shooting 1:1

Posted by bvanant on 05 January 2016 - 08:48 AM

The 105 Nikon lens has a minimum focus distance of about 1 foot (30 cm or so) measured from the focal plane line on the camera body (not the front of the lens). At that distance you get true 1:1 i.e. a beastie 36 mm or so across fills the frame. What you should do  if you are interested is to mount your camera on a tripod and shoot a ruler at various distances from the ruler and you will see that even relatively large movements away (say an inch or 10%) you will still get 38 mm or so filling the frame. If you play that way you will find out how important (to you) that last little bit of magnification is.

 

Bill




#368740 Z-240 to Olympus PT-EP08 Optical Cable??

Posted by bvanant on 29 December 2015 - 08:25 AM

On the camera it looks like a standard S&S connector (just a straight plug). On the Z240 end you need the screw on cap. http://www.bluewater...vMt8aAsfj8P8HAQ

or something similar.

bill




#368212 Definitive Macro for Canon?

Posted by bvanant on 12 December 2015 - 02:48 PM

There supposedly is a new Kenko Tele-Plus converter for the EF-s lenses so the Canon might work, but i have not been able to find one to buy.

Bill




#368158 OMD EM-1 in Nauticam housing with Nauty Viewfinder - viewing pics though LCD...

Posted by bvanant on 10 December 2015 - 06:30 PM

You can turn off the proximity sensor.

BVA
 




#368157 Definitive Macro for Canon?

Posted by bvanant on 10 December 2015 - 06:29 PM

For me the definitive macro setup is the Tamron 60 + a 1.4 teleconverter. Great versatility, more magnification out of the box for little things and great results with external diopters.

Bill




#366409 A6000 >> Macro >> has anyone succeeded using the canon 60mm m...

Posted by bvanant on 23 October 2015 - 10:43 AM

I have shot with the canon 60 and adapter. What I do is set the focus long before shooting; and use the manual move the camera forward and back to get the shot.  Works fine if a bit slow.  Trying to use autofocus with any of these adapters (so far) seems hopeless.

Bill




#366192 Metabones Smartadapter IV with Sigma 15mm

Posted by bvanant on 15 October 2015 - 11:30 AM

It works (kind of) but in my hands at least it is terribly slow.

Bill




#365400 What is the purpose of a Dome?

Posted by bvanant on 19 September 2015 - 09:08 AM

I think we are talking apples and elephants here. I thought the OP was asking about a dome port, not a dome diffuser for a strobe. Bill




#365299 Using a UV fill light added to strobes for stills (i-Torch Pro6+) (?)

Posted by bvanant on 16 September 2015 - 03:29 PM

You will need both. The bits that I use regularly are from NightSea and FireDiveGear. Both companies make great stuff.

Bill




#365298 What is the purpose of a Dome?

Posted by bvanant on 16 September 2015 - 03:25 PM

Dome ports allow you to shoot wide angle photographs more easily. You can use them with any lens but in general you want them for wider lenses both rectilinear ones and fisheyes. The dome is acting as a big optical element and it allows you to shoot a wide scene but of a "virtual image" that is created by the dome. The virtual image is between 1 and 15 inches from the dome (depending on the dome size, larger domes lead to virtual images further away). 

http://scubageek.com...es/wwwdome.htmlis a great tutorial on domes. 

Bill




#365088 Workshops on OMD-EM1 Mirrorless Camera

Posted by bvanant on 09 September 2015 - 12:37 PM

i can highly recommend the workshops run by Mike and Luca if you can make them, unlike many other workshops they don't take cameras with them on dives, but are there to help the students.  Otherwise you can go to a Underwater Photo society if there is one near you, at LAUPS we help individuals all the time with everything from the basics to advanced stuff.

Bill




#363493 SLR vs. Mirrorless. What is the best camera for macro?

Posted by bvanant on 22 July 2015 - 06:10 PM

Rob:

I took my 7D and Oly EM-1 on a trip to Indo. At the end, most guests thought the EM-1 photos are better.  As for macro, a lot depends on what you want to shoot and how small you want to shoot. The Canon 100 and the Canon 60 are great lenses but shoot 35 mm full frame.  The native OLY 60 shoots 17 mm full frame. Any diopter improves things proportionally, i.e. a 2x diopter for the Canon gets you to where the OLy is natively and the 2x on the oLY gets you to 8 mm full frame.  That being said, and if you shoot raw, to me at least you can't tell the IQ apart very much. You could go Canon 5DIIIS with 50 MP and crop like mad, but I would rather carry around the smaller/cheaper system.

 

Bill

P.S. Going to God's Pocket in Sept, hope it is as good as the Alaska Trip.

Bill




#363389 SLR vs. Mirrorless. What is the best camera for macro?

Posted by bvanant on 19 July 2015 - 05:22 PM

Rob:

Hope you are well and diving a lot. For me if you are shooting tiny stuff (like the small spiny lumpsuckers) then the olympus om-d e-m1 (or the new em5-II) is the best option with the only 60 macro lens. Out of the box it is 1:1 (on the smaller sensor) meaning it is 2:1 compared to full frame and 1.5:1 compared to crop sensor DSLR. Then add the CMC (or my old SMC) and you are at 4:L1 compared to full frame.  I have been shooting that for a while now and for tiny stuff it is quite nice.

 

Bill