Category Archives: Macro

More Macro

Posted on by under eggs, Macro, molluscs, nudibranchs

Has ‘an bollenessor’ turned into a macro photography-only blog? It seems so, I have not posted about my aquarium in ages. I still end up doing macrophotography when I go rockpooling. I tried wide-angle photography last week in the rockpools and failed miserably (so no photos for the blog). I hope to mix it up later in the year but for the moment here are some more macro photos. Above a picture I am quite pleased with: a solar-powered seaslug Elysia viridis on its favourite food the green seaweed Codium with some nice orange seaweed as a background. The pictures below show the snail Raphitoma purpurea (a first for me in Cornwall), the nudibranch Okenia nodosa (a lifer for me), a European Cowrie Trivia monacha and a patch of goby eggs (sans goby-egg eating seaslugs unfortunately).

I am a bit stuck in a limbo where on one hand I want to see interesting, new species and take good ID pictures (for recording on iNaturalist and sharing on facebook groups), but on the other hand I have gone a bit above my station and developed an interest in taking more ‘arty’ photos such as the solar-powered seaslug one at the top of this post. Sometimes the two aims converge. sometimes not. As an illustration of that, below a few shots of the nudibranch Polycera quadrilineata that ended up quite differently: a ‘good for ID’ photo but with an ugly cluttered background, a more arty photo (although the bokeh effect is due to backscatter and it is actually not that great), an overall ‘nice’ photo (posted before), a ‘shore studio’ shot of a slug (more about that in the next post) and an artsy fartsy version of a studio shot where the highlight have been so blown out that the slug basically is shown as a set of yellow stripes. I must say I can have ideas about how to take a certain shot, but my general approach is still ‘spray and pray’!

Early Spring Macro

Posted on by under crustaceans, eggs, fish, Flushing, Macro, molluscs, mzuiko60mm, nudibranchs, rock pooling, seaweeds, shells, snorkeling, worms

High time for a quick update. Spring has not started in earnest yet and so the number of days in the water have been limited. As is usual, I have practiced taking pics of Flat Periwinkles (Littorina obtusata or L. fabialis) on a bank of the Penryn River. Below that another set of pics taken in Flushing and Falmouth when it was too windy and choppy to get in the water. These were all taken with my cygnustech diffuser which give the pictures a quite distinctive, slightly subdued look.

I did go in the water a few days in a row when the weather and tides allowed it, which was great. I think one time I stayed in for three hours – my core temperature took some time to recover! No special finds and only a few good pics as my strobe placement had become quite rusty but here are the best and/or the most interesting ones. (Species names in the photo captions.) Bring on proper spring weather and flat seas!

What is a seaslug?

Posted on by under Macro, molluscs, nudibranchs, worms

A nudibranch, a snail and a seaslug crawl into a bar…no seriously, what actually is the difference between these three types of molluscs? According to Kerney and Cameron (1979), those animals that cannot fit into their shell are called slugs, and those that can are called snails (definition brought under my attention by Ian Smith, see his amazing species accounts of British molluscs on flickr: Morddyn). Seaslugs either have an outer shell in which they cannot retract, an internal shell or no shell at all. The Solar-powered seaslug (Elysia viridis) pictured above is a species without a shell that is an example of a seaslug. Nudibranchs are a type of seaslug with ‘naked’ (nudi) gills (branchs) on their back. Nudibranchs never have a shell (although many have one when they are a larva). Books on nudibranchs often include seaslugs and sometimes they even feature snails! This happens when these species are related to seaslugs (the ‘lathe acteon’ or ‘beer barrel’ Acteon tornatilis is an example of that – a goal of this year is to take a good photo of that species). I have posted a range of photos on here as an illustrations of seaslugs (or not!); read the captions for species info.

Candy striped flatworm Prostheceraeus vittatus

Macro Rockpooling

Posted on by under anemones, cnidarians, crustaceans, echinoderms, Macro, molluscs, photography, sponges, tunicates, worms
I realised I had not posted (much) about this year’s rockpool snorkels so I am taking the opportunity to post a ‘picdump’ with a whole array of tiny species. These photos were taken with a macrolens, and for most a wetlens was used for even greater magnification. Above the White Tortoiseshell Limpet Tectura virginea, a tiny species living on calcified red seaweed. I have added species names to the photos below.

Macro-Wide Angle (on land)

Posted on by under fish, fluorescence, Macro, molluscs, wide angle

I really like macrophotography and I really like wide angle photography, but what I REALLY like is macro-wide angle photography! Examples of that underwater can be seen in previous posts (e.g. here and here) but this year I also bought a normal ‘topside’ lens for this purpose: the kuangren k42. It is a difficult lens to use: it is manual focus and it is very (VERY) dark. The first few times trying it out I was almost ready to give it up – that is how hard it was to get a usable photo out of it. With a lot of perseverance I narrowed down the combination of camera and lens settings but there is a lot of practice to be done next year. (Ideally I’d also have two flashes on bendy arms instead one mounted on top of the camera to properly light the subject.) Anyway, above a White Italian Snail which has a bunch of other common names so the Latin one is always best: Theba pisana. It is not all in focus (the eyestalks are not a friend of DoF) but the perspective does manage to show both the (small) animal and its habitat which is otherwise impossible to do. I have also tried the lens a bit closer to the water, some examples below. I have since purchased another kuangren lens and hope to also experiment with – and blog about – that next year!

Seagrass Macro

Posted on by under anemones, bryozoans, eelgrass, Flushing, Macro, molluscs, mzuiko60mm, nudibranchs, photography, tunicates
Polycera quadrilineata

I had a couple of good snorkels at the end of summer in the seagrass beds off my local beach in Flushing. The water at the end of summer is warm enough to go without wetsuit – I just had a weightbelt to let me sink down on the sand at low tide, no fins needed. I managed to do what I normally find very difficult: spot nudibranchs! Mainly one of the more common species, Polycera quadrilineata, but that was fine by me, as they are very beautiful, especially the black colour morph pictured above. I spotted one other species, the egg-eating Favorinus branchialis (with its own eggs also visible). Not great photos, but in my defense they are very small!

Shelled molluscs are easier to find. Below 1) the ubiquitous Grey Topshell Steromphala cinerarea, 2) the Grooved Topshell Jujubinus striatus and 3) the tiny Rissoa membranacea (faecal pellets on show, even within the shell). The latter two species are strongly associated with seagrass.

Some assorted macro photos below and at the end a view at a very low tide of the Flushing seagrass site this October.

Moody Macro

Posted on by under crustaceans, fish, Flushing, Macro, mzuiko60mm, rock pooling
A quick post with some finds from a recent walk on the shores of Flushing, specifically above-water (‘topside’) macro shots with a diffuser. This always leads to my subjects turning out with subdued grey and brown tones, but that is OK. A velvet crab, the amphipod Cymodoce truncata (looks a bit like a trilobite!), a worm pipefish covered in a film of water with some more shots (with descriptions) at the end.

Blennies

Posted on by under fish, Macro, mzuiko60mm, snorkeling
A trip to one of my favourite spots on the North Coast, Booby’s Bay, two weekends back led to a fun rockpool photography sesh. The pools here are quite different than in Falmouth: deeper, more exposed and with fewer seaweeds (see here for impressions). Shannies (Common Blennies) and Montagu’s Blennies are abundant here and I chose not to seach for things ‘more special’ but take pics of these characterful fish. Shannies are greyish and common, but actually very beautiful as you can see above. Their mottled, slimy (scale-less) skin also makes them very well-camouflaged as is clear from the photo below.
Below a few more pics, including of Montagu’s Blennies, which have a ‘quiff’. Some of these fish have hatched not too long ago and are tiny (<1 cm)! When I took these pics the weather was great (and I ditched the wetsuit) but as I am writing this post it is raining and blowing outside. My snorkel outings will be less frequent from now on unfortunately, but on the plus side my blogging will pick up….

Back to Silver Steps

Posted on by under diving, fish, Macro, molluscs, nudibranchs, Silver Steps, worms

With the camera housing back, I have been in the water again lately, taking quite a few photos. I am lagging behind with posting quite a bit (this will allow me to post when I cannot get in the water later in the year) but should occasionally maintain the blog over summer, so here is! My local haunt Silver Steps provided during two dives with the macro lens. Above a Twin Fan Worm (Bispira volutacornis). These are quite shy (i.e. they retract into their parchment-like tube when their composite eyes detect a curious diver) but also are attached to cluttered rock walls. To blur this unappealing background, I used a very shallow depth of field (f 2.8); this also has the advantage of letting a lot of light in so ISO can be decreased to 100 – sorry non-photographers!). Below a collage of other ‘usual suspects’ (names under the photos) but ALSO I SPOTTED AN OCTOPUS! Crouched in a crevice and with only a macro lens I could not do it justice but it was still a very nice encounter.