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jrosenf

Member Since 22 Jan 2004
Offline Last Active Yesterday, 07:00 PM
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Posts I've Made

In Topic: Unknown nudibranch from North Sulawesi - Cuthona Sp.?

31 May 2017 - 03:43 PM

Appears to be Tenellia sp. (known as Cuthona) similar to the photos found at http://www.underwate...eolids/e639.htm.


In Topic: Nikon D7500 vs D500 Comparison

14 April 2017 - 12:58 PM

From the info out to date:
 

No AI indexing
No back focus button
Only one SD card slot
Square viewfinder

Will it be capable camera, I don't no reason to doubt it will be.

 

Owning some AI lenses, its important for me to have that functionality.
Using back button focusing all the time, its a feature I consider mandatory.
With the video capabilities, it sure would have been nice to save photos to one card and video to another.
Circular viewfinders simply makes a great deal more sense.

My points are not specifically related to the underwater photographer, but photographer in general.
 
The bottom line from my original post is, price wise and stable wise I think Nikon missed the boat.

Geo
 

You say the D7500 has no back focus button, but it appears to have the same AE-L/AF-L button as the D7200 which can be programmed for back button focusing as explained here. Am I missing something?


In Topic: EVA Airlines - Elite vs Economy Class?

28 March 2017 - 11:01 AM

I've flown EVA a couple of times between Seattle and Manila via Elite Class and once via Economy. Regarding the amount of legroom, I'd compare it to an Emergency Exit row in Economy. The times I flew Elite, it was about $200-$300 more for the round trip ticket in Elite vs. Economy. The time I flew Economy, it was close to double to fly in Elite, which just wasn't worth it to me. I ended up scoring an Exit row each way between Seattle and Taipei so I had equivalent legroom without having to pay. I'm 6' 0", by the way.


In Topic: Flabellina sp?

25 March 2017 - 08:04 AM

I'm pretty sure this is Favorinus sp.

 

There are several places that describe it as Favorinus sp. 2

http://www.nudibranc...nus-sp1-01.html

(even though this page says sp.1, he identifies it earlier as sp.2). The "Nudibranch & Sea Slug ID Indo Pacific" book describes sp.2 as -

 

15mm, Orange Red with orange lines on the oral tentacles; cerrata brown with conspicuous lamellae and black apices; cerata orange with white subapical rings and purple tips....

Keep in mind that the species numbers for undescribed species have no scientific significance. XXX sp. 2 simply means that for the given resource (book, website, etc.), the author had one undescribed XXX listed previously. The numbers simply differentiate the given species from other undescribed species of the same genus.

For example, my Hypselodoris sp. 2 found here is the same as what Erwin Kohler calls Hypselodoris sp. 9 here and what is called Hypselodoris sp. 23 in Nudibranch & Sea Slug Identification -- Indo-Pacific. They're all the same species and can simply be referred to as Hypselodoris sp. when identifying a new photo.

 

As for the photo above, it is indeed Favorinus sp.


In Topic: One more from Anilao

25 March 2017 - 06:53 AM

Thanks, glad you found it of use!