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Previous Sightings by Mardon

Thumbnail ImageCentipede on May 21, 2015
Thumbnail ImageCrustacean on June 14, 2018
Thumbnail ImageBeetle on June 14, 2018
Thumbnail ImageFlea Beetle on July 27, 2014
Thumbnail ImageWildflower on August 09, 2014
Thumbnail ImageAnt on August 17, 2014
Thumbnail ImageTetragnatha on July 31, 2014

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Contributors » Mardon » Crustacean

Crustacean discovered by Mardon (#10112)

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Sighting Info

Observed: June 14, 2018 @ 3:00 PM
Posted on: June 16, 2018 @ 2:57 PM (diff: 2 days)
Comments:
Found in a water sample taken using a plastic jar dipped into the water/vegetation near the shore of a small pond. This was under water and swimming when I took the photos.

Newfoundland Nature

Sighting's Features

Help to Describe

Newfoundland Nature

Sighting's Identification

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Newfoundland Nature

Newfoundland Nature

Comments by Site Members (scroll to post comment)

By Tclenche on 6/16/2018 5:54:18 PM

A fascinating series of sightings and photos. I hope to be able to try this soon. What sort of photographic equipment did you use to get these photos?

By Mardon on 6/16/2018 7:06:17 PM

Thank you!

I use a Canon 1D Mark IV with a Canon MP-E 65mm f/2.8 1-5x Macro Photo lens and a Canon Macro Twin Lite MT-24EX flash. Hand held, no tripod. The MP-E 65mm lens is rather interesting to use because it has no focus adjustment. The only way to focus it is by moving the camera back and forth until it is the correct distance from the subject.  Some of these aquatic creatures can swim rather fast, so I shoot at 1/250 second shutter speed to minimize motion blur. This is the fastest shutter speed that will sync with the flash.  I keep the aperture on this lens set to f/16 to maximize depth of field.  I try and take at least a dozen exposures because when photographing live, moving arthropods, the majority of the shots are too blurry and out of focus to use. I also shoot in RAW format rather than JPEG. This gives much more flexibility with exposure and white balance. I also have a a Canon EF 180mm f/3.5L Macro lens but I rarely use it. It's more for subjects that are 2 cm and over. I prefer to photograph the tiny stuff.

What equipment are you thinking about using for the macro work you're planning? 

By Tclenche on 6/16/2018 7:10:10 PM

I just have a Canon Sx50hs. it does decent macro. I can program the shutter speed on it and do limited manual focus.

I also have a small digital microscope that I use on occasion. Just going to try some things to see what works.

Thank you for the information!!

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