Saturday, May 2, 2026

The damselflies are out

Well, one damselfly at least.  That's the large red damselfly, Pyrrhosoma nymphula, a western Palearctic species usually the first to emerge in spring in the UK. And once emerged they're interested in two things: feeding and mating.

A quick trip down to the pond at Efford Marsh, one of many local nature reserves in Plymouth, found first a red male that had already taken a bite out of a small green weevil (nettle weevil perhaps?) and was obviously eying it up for another go...


...followed by a mating pair who graduated from the initial joining to the classic damselfly mating wheel.



All shots taken with the OM-1 and 100-400mm MKII, ISO 400 and wide open aperture.  I love the close focusing on the 100-400mm and the ability to smooth out the backgrounds due to the long focal lengths of this super telephoto lens.

I'm looking forward to getting more damsel and dragonfly shots once they start emerging as the weather warms up.  I got a few dragonfly in flight shots last year with the 40-150 f2.8 + 1.4x teleconverter but struggled for range over water.  Hopefully the extra reach will increase my opportunities.


Friday, April 24, 2026

 Butterfly photography again

Years back I published a post on the Canon 55-250mm EFS as a budget friendly butterfly lens on my Canon APS-C bodies.  Times have moved on, I now use Olympus/OM Systems micro 4/3 equipment, and a recent day at The Garden House when I managed to capture these male and female Orange Tip butterflies (Anthocharis cardamines) feeding on Sweet Rocket, Hesperis matronalis, reminded me of how I now use my Olympus 40-150mm f2.8 PRO and 1.4 x teleconverter as my go to combination for shooting these flying flowers.



The native lens has a minimum focusing distance of 0.7m - just over 2 ft - and a magnification at 150mm of 0.21x. By adding the 1.4x teleconverter the minimum focusing distance stays the same but the magnification increases at the now 210mm end to 0.3, allowing tighter framing.  This is the difference:

150mm on native lens

210mm on native lens + 1.4x teleconverter

Effectively I have the equivalent in full frame terms of a close focusing 100-400mm f4 zoom (actually 112-420mm if you need to quibble).  All with Olympus / OM systems PRO image quality and rugged weatherproof build.  Any compromise in image quality from adding the teleconverter is hardly noticeable.  Yes it's a little heavier than my previous Canon 80D/55-250mm combination but the results are far better.

As I've referenced in previous posts, the combination on the OM-1 it also effectively supports hand held focus stacking.  So a five image stack with a compliant subject such as this Green-veined white butterfly (Pieris napi) provides me with both greater depth of field on the subject and even better background blur and separation than the f9 aperture I was using for the previous shots.

The full image, slightly cropped

100% crop of the butterfly head

In the field this combination of relatively light weight, great stabilisation with the Olympus/OM System IBIS, close focusing to throw more pixels on the subject while keeping a good working distance, handheld stacking and excellent image quality means that I have far more flexibility when pursuing butterflies in their habitat.  As demonstrated by these few shots from previous years

Brimstone

Green veined white in flight

Meadow brown feeding on yarrow

So, a combination that's yielding excellent results in a compact and relatively lightweight package, and, just as importantly, within my budget.  Yes I might lust after the new 50-200mm f2.8 PRO but that's way beyond what I can earn from my image sales - and that sets the budget.








 


Sunday, April 19, 2026

OM System 100-400mm MK II - some lessons learned

I mentioned in my recent post that I'd acquired the Mk II iteration of the OM 100-400mm for it's sync IS.  I also mentioned that I hadn't had that much chance to use it to it's full potential due to the weather being pretty rubbish.  It's still early days but now I've had a better opportunity. with sunny conditions, a visit to Lopwell Dam, where the tidal waters of the Tamar meets the fresh water of the River Tavy, and a couple of hours spare to try some bird photography.  Missing was a great variety of birds but there were a few around.  And a few lessons were learned.

Lesson 1:  Working with 400mm

I was working from the bank and these Canada Geese were on a low tide island about 50 metres away.  Hand holding with both arms supported on a fence rail gave me reasonably sharp shot at ISO 800, 1/1250 sec, f6.3 (wide open).  I've cropped in a little but not excessively.  Examined closely I'd have been better upping the ISO to 1600 to give a slightly sharper - less motion blur - shot at 1/2500 sec.  No wonder other photographers routinely use higher ISOs to keep the speed up, albeit with an increase in noise..


Another part of the flock were on the water, a little closer, allowing me to get some reflection images.  Same settings as before but the goose was larger in the frame giving a little more detail on the feathers.


Again, I've cropped a little to give a better framed image.

The lessons learned?  Even for big birds 400mm on a wide estuary is only just enough reach unless they come close.  Without the camouflage of a hide, most don't.  And 1/1250 sec shutter speed is barely enough.  Take a hit with higher ISOs and noisier images to sharpen the shots.

Lesson 2: Lets try the 1.4x teleconverter

Want more reach?  Add a teleconverter.  As I only own the Olympus 1.4x that was my only choice. 400mm became 560mm; hence more pixels on the birds. That's the upside.  The downside is that that I'm down to f9 wide open, f10 for preference to allow for the slight reduction in wide open image quality from the extra glass.  That means higher ISO to keep shutter speeds up.  Is it worth it to get capture images where more distant birds appear larger in the frame?

Yes.

I'd added the teleconverter when, on the distant bank opposite, a cormorant landed to dry it's wings.  ISO up to 1/1250, f10, 1/1600 sec and shot taken.  I'd popped the camera on a tripod for this as I'd previously found that adding the 1.4x was a bit much for my shaky handholding.  Here's the result:


Lessons learned?  The 1.4x works - but it has a cost, particularly on a slow lens such as the 100-400mm.  With modern noise reduction (more on this in a separate post later) it's worth the risk but there's always that downside.  

Although it can work very well...

Lesson 3:  Try baiting

As photographers do, we chat.  By chance I met up with a more experienced bird shooter and after some conversation he suggested trying a bit of baiting on a fence rail by the estuary bank.  He had some seed, put it out, and within a minute I had a Dunnock landing for a feed.


Then a male chaffinch.


Followed in quick succession by a cock pheasant who'd sauntered down the road in greedy anticipation.


I still had the 1.4x teleconverter on so I had to go to ISO 1600.  Even that was marginal for the Dunnock at 1/320 sec though the detail is certainly there.  As for the pheasant it's not hard to imagine the delight when their flamboyance was first introduced to the UK.

Lessons learned?  Baiting works if done regularly.  The spot these final two shots were taken is regularly baited by other birders.  I'll be joining their number and carry seed with me next time I'm at Lopwell.  Secondly, although I didn't need the 1.4x - straight 400mm would have been enough - it actually held up very well at closer range.

A satisfying day,