Archive for November, 2019

“Odonate Larvae and Exuviae” Facebook group

November 29, 2019

I created a new Facebook group called “Odonate Larvae and Exuviae.” Readers of this blog who enjoy my photographs of odonate exuviae might be interested in following the new group. Please join us!

Copyright © 2019 Walter Sanford. All rights reserved.

Testing off-camera lighting configurations

November 27, 2019

I spent some time in the BoG Photo Studio experimenting with off-camera lighting configurations for macro photography using the pass-through hot shoe camera rig described in a recent blog post.

Both photos feature “Lizzie,” my toy dinosaur-lizard. Lizzie is one of my favorite models.

The soft, diffused lighting in the first photo is mostly even, with relatively little contrast between light and shadow. As a result, the photo looks a little flat.

The soft, diffused lighting in the last photo shows more contrast, achieved by repositioning one of the two small flash units on my Canon MT-26EX-RT Macro Twin Lite. The juxtaposition of light and shadow seems to convey a greater sense of depth than the flat lighting in the first photo.

Now that I have figured out a lighting configuration that works, I will substitute a different “model” for Lizzie. I have learned from experience that it’s better to use a rugged toy like Lizzie for testing purposes, rather than one of the fragile scientific specimens that I like to photograph. Choose a test subject that is about the same size as your intended subject.

Tech Tips

The equipment used to shoot the macro photographs (shown above) is described in a recent blog post entitled Pass-through hot shoe. Two off-camera external flash units were added to the rig: a Godox TT685o/p Thinklite Flash for Olympus/Panasonic Cameras; and a Godox TT685F Thinklite TTL Flash. Both Godox flash units were fitted with a Lastolite Ezybox Speed-Lite 2 flash modifier.

All of the external flash units were set for manual mode, including the Canon MT-26EX-RT Macro Twin Lite. The Godox off-camera flashes were fired by a Godox X2To/p radio flash trigger mounted on top of my camera; the Canon flash was triggered synchronously by the pass-through hot shoe on the X2To/p.

I shot JPG plus RW2 (Panasonic’s proprietary raw format). Both photos in this post are unedited JPGs straight from the camera.

Copyright © 2019 Walter Sanford. All rights reserved.

With- and without Raynox DCR-250

November 25, 2019

This blog post is a simple demonstration of the effect of adding a Raynox DCR-250 close-up filter to my Panasonic Lumix DMC-FZ300 24x superzoom bridge camera. Both photos are full-frame, that is, uncropped.

Without Raynox

A set of keys for my apartment at The Beacon of Groveton (BoG) is shown in the first photo. I chose keys for the subject since most people are familiar with the typical size of door keys; the slightly smaller key (far right) is a mailbox key.

The camera lens was set for “Wide Macro,” with a focus range from 1 cm (0.39 in) to infinity. A Canon MT-26EX-RT Macro Twin Lite was attached to the front of the camera lens using a new Sensei PRO 52-58mm Aluminum Step-Up Ring to adapt an old Canon Macrolite Adapter 58C (58mm) to the lens. My Raynox DCR-250 close-up filter wasn’t mounted on the front of the MT-26EX-RT.

A set of keys for my apartment at The BoG.

With Raynox

Part of a single key from the set of keys is shown in the last photo. The same key is shown on the far left side of the first photo.

For this photo, my Raynox DCR-250 close-up filter was mounted on the front of the Canon MT-26EX-RT Macro Twin Lite attached to the camera lens.

According the B&H Photo Specs page for the Raynox DCR-250 close-up filter, its magification is 2.5x. The actual magnification might or might not be 2.5x, given the fact that the camera lens was adjusted for slight telephoto zoom in order to eliminate the vignetting caused by mounting a 43mm filter on a 52mm lens. All of that being said, the last photo clearly shows the magnification is increased dramatically in contrast with the first photo!

A single key for the utility closet in my apartment at The BoG.

Related Resources

Copyright © 2019 Walter Sanford. All rights reserved.

What is it?

November 22, 2019

It’s time for another exciting edition of “What is it?” Well, what is shown in the following photograph? If you think you know what it is, then please leave a comment. The answer will be provided in a follow-up comment.

~40mm (217mm, 35mm equivalent) | ISO 100 | f/6.3 | 1/2500 s | 0 ev

The flash power ratio was 1/256.

Tech Tips

The equipment used to shoot the quick-and-dirty macro photograph (shown above) is described in a recent blog post entitled Macro flash for Panasonic Lumix DMC-FZ150/300. In this case, I used my Panasonic Lumix DMC-FZ300 24x superzoom bridge camera.

Post Update: What it is.

The preceding photo shows a close-up view of a tube of Crest toothpaste — the actual metal tube, rather than the cardboard box (as Michael Powell commented).

I’m impressed by the level of detail printed on the toothpaste tube that is almost invisible to the unaided eye. The black dots on the red background remind me of the way images are/were printed in newspapers and comic books using the Ben Day process.

Copyright © 2019 Walter Sanford. All rights reserved.

Cross-compatibility of Godox TT685-series flashes

November 20, 2019

The following quick-and-dirty video is a demonstration of the cross-compatibily among Godox TT685-series external flash units, including a Godox TT685F, TT685o/p, and TT685C (shown from left-to-right). All three flash units were test-fired using Godox X2TF and X2To/p radio flash triggers.

Notice the brand of flash trigger used to fire the flashes appears in the lower-left corner of the LCD on each flash. The beginning of the video shows all three flash units had been fired by a Godox X2TF (for Fujifilm) set for TTL mode. Think about that — now the TT685o/p (center) and TT685C (right) “think” and operate like the Fujifilm-compatible flash (left). Incredible!

Next I switched to a Godox X2To/p (for Olympus and Panasonic), changed the mode to Manual (M), and test-fired the flashes.

Take-aways

The cross-compability of Godox TT685-series flashes makes these relatively inexpensive, well-made flashes an even better value. By buying wisely it’s possible to assemble an array of flashes that provides maximum flexibility. Bravo, Godox!

Editor’s Commentary

You know, I actually had a vision of how I wanted this video to turn out before I started shooting. Let’s just say my vision wasn’t realized. I like to think I’m a fairly good photographer; videographer, not so much. Perhaps I’ll re-do the video when I’m not as pressed for time as I was for this iteration.

Copyright © 2019 Walter Sanford. All rights reserved.

Old business. New business.

November 18, 2019

The following quick-and-dirty photograph shows an array of gear used for off-camera flash photography, including a Canon 580EX II Speedlite, Godox X1R-C radio receiver for Canon, Godox X2TF radio transmitter, and Godox X2To/p radio transmitter. This photo will be used to illustrate some old- and new business.

An array of gear used for off-camera flash photography.

Old business

In my last blog post, entitled Pass-through hot shoe, I wrote…

…the Canon macro flash is compatible with Panasonic bridge cameras with one caveat: TTL is incompatible, so it’s manual mode flash only.

Look closely at the Godox X2T-series of radio flash triggers shown in the lower-half of the preceding photo. Notice the pass-through hot shoe on top of both units features one pin — the power pin. Therefore the X2Tx units can be used to trigger a flash mounted on the pass-through hot shoe but no other communication is possible between the camera, X2Tx, and shoe-mounted flash.

When a Canon flash is mounted directly on the hot shoe of one of my Panasonic superzoom bridge cameras, or one of my Fujifilm X-series cameras, the center power pin on the flash and contact on the camera are aligned so the flash can be triggered in manual mode. The other pins on a Canon flash might touch some of the contacts on the cameras, but the pins/contacts aren’t used for the same purpose from one brand to another so they don’t work. As a result, flash features like TTL and high-speed sync might not work. Essentially, it’s as if the camera hot shoe has only one pin — the center power pin.

Related Resource: Answering Your Godox X1T Questions, by alex silva photography (7:10). Ignore the fact that this video was made for the Godox X1T-series radio flash triggers — the X1T and X2T are essentially the same. Fast-forward to 3:03/7:10 for a segment related to mounting a flash on the pass-through hot shoe; the segment ends at 4:00/7:10.

New business (What’s old is new.)

The first two external flash units that I bought are Canon Speedlites, including the Canon 580EX and Canon 580EX II. Neither flash unit is radio-capable — they can be used off-camera but it’s optical master and optical slave mode only for these two flashes. Both Canon flashes cost ~$500 each when new. Although I bought the flash units lightly-used, they hadn’t depreciated much, and as a result, I paid several hundred dollars for each one.

During the past year-or-so, I switched to the Godox TT685-series of external flash units. Not only does each Godox flash cost approximately one-fifth the MSRP for current Canon flashes, the Godox units are radio-capable.

Mounting my Canon 580EX II Speedlite on a Godox X1R-C radio receiver converts the Canon flash to a radio-controlled flash unit that works like any Godox TT685-series flash. Interfaced with an X1R-C, the Canon can be set and triggered remotely by radio from both the Godox X2T-series and XPro-series radio flash triggers, or even another Godox TT685-series flash set for master mode.

The Canon 580EX II — the newer model of my Canon flashes — is fully-compatible with the Godox X1R-C; the older Canon 580EX is incompatible.

For $40 — less than half the cost of a new Godox flash — I was able to repurpose one of my old, reliable Canon flashes. How cool is that? Very cool!

Related Resource: Godox XPro TTL Flash Trigger [REVIEW], by steeletraining (10:53). This video covers three points that might be of interest to readers of my blog.

  • Godox X1R-C receiver (enables use of newer Canon flashes with Godox system)
  • cross-brand compatibility among Godox flashes and radio flash triggers
  • TCM Function, Godox XPro-series radio flash triggers

Copyright © 2019 Walter Sanford. All rights reserved.

Pass-through hot shoe

November 15, 2019

The Godox X2To/p radio flash trigger has a slightly lower price point than the Godox XProO/P, smaller footprint, and a pass-through hot-shoe. Perhaps you’re wondering, “Who needs a pass-through hot shoe?” You do. Well, you might, for some applications.

The following photos show a Godox X2To/p mounted on my Panasonic Lumix DMC-FZ300 24x superzoom bridge camera; the Canon MT-26EX-RT Macro Twin Lite is mounted on the pass-through hot shoe on top of the X2To/p. The same set-up works with my Panasonic Lumix DMC-FZ150 24x superzoom bridge camera.

Macro flash kit for Panasonic Lumix 24x superzoom digital cameras.

As I mentioned in my last blog post, the Canon macro flash is compatible with Panasonic bridge cameras with one caveat: TTL is incompatible, so it’s manual mode flash only.

Macro flash kit for Panasonic Lumix 24x superzoom digital cameras.

The beauty of adding the Godox X2To/p to the rig is it can wirelessly trigger multiple off-camera flash units via a radio signal. During limited testing, I discovered the X2To/p can be set for either TTL- or Manual modes; for consistency, I use Manual mode for all the flashes including the Canon macro flash.

Take-aways

Although this rig is well-suited for studio applications, I’m guessing it isn’t as good for field work. That being said, I have never used a multi-flash setup in the field.

Full disclosure

The radio flash trigger shown in the preceding photos is actually a Godox X2TF for Fujifilm cameras. The two brands of Godox radio flash triggers are virtually identical except for the label on top of each unit.

I needed the Godox X2To/p for use with my Panasonic Lumix DMC-FZ150 24x superzoom bridge camera in order to control two off-camera Godox flashes that were used to light the scene in both photos shown above. Both external flash units were set for Radio Slave mode.

Copyright © 2019 Walter Sanford. All rights reserved.

Macro flash for Panasonic Lumix DMC-FZ150/300

November 13, 2019

You might be familiar with the old proverb that begins “For want of a nail, the shoe was lost.” Updating the poem, I might say “For want of a step-up ring, the macro flash was lost.” Until recently, that is, when a $7 part solved a long-standing problem.

Both of my “go-to” cameras for photowalking — including the Panasonic Lumix DMC-FZ150 24x superzoom bridge camera, and the Panasonic Lumix DMC-FZ300 24x superzoom bridge camera — feature excellent capability for macro photography. Set for “Wide Macro,” both cameras have a focus range from 1 cm (0.39 in) to infinity.

Problem is, at a working distance of 1 cm from the subject, “lens shadow” is a problem using the built-in pop-up flash. What’s the solution? Add an external macro flash unit such as the Canon MT-26EX-RT Macro Twin Lite.

Front of macro flash rig

The lens on the DMC-FZ150 and DMC-FZ300 has the same size filter thread (52mm), so both cameras can use many of the same accessories. I used a new Sensei PRO 52-58mm Aluminum Step-Up Ring to adapt an old Canon Macrolite Adapter 58C (58mm) to the camera lens.

The Flash Unit Mount Ring (round holder for the twin flashes) clips onto a flange around the Canon Macrolite Adapter 58C; the Contol Unit is mounted on the camera hot shoe.

It’s worth noting there is a Canon Macrolite Adapter 52C (52mm) available for ~$14 MSRP. Since I already had a 58C for one of my Fujinon lenses, I decided to buy a step-up ring and save $7.

Macro flash kit for Panasonic Lumix 24x superzoom digital cameras.

For more magnification, a Raynox DCR-250 close-up filter can be mounted to the 58mm filter thread on the front of the Canon MT-26EX-RT Flash Unit Mount Ring using two adapter rings: a Sensei 58-52mm step-down ring; and a Sensei 52-43mm step-down ring.

The same combination of adapter rings can be used to mount the Raynox close-up filter on any lens to which the MT-26EX-RT Flash Unit Mount Ring is attached.

Back of macro flash rig

Macro flash kit for Panasonic Lumix 24x superzoom digital cameras.

Demystifying step-up and step-down rings

Here’s how to decode the numbers that appear around the rim of either a step-down or step-up ring. Let’s say we’d like to connect a Canon Macrolite Adapter 58C to the lens of a Panasonic Lumix DMC-FZ300.

The Macrolite Adapter has a filter thread diameter of 58mm; the DMC-FZ300 lens has a filter thread diameter of 52mm. We need a 52-58mm step-up ring, because we’re going to step up from a smaller- to a larger filter thread diameter. Make sense? Hope so!

How/why a Canon flash works with a Panasonic camera

The following annotated image shows the pin configuration on the hot shoe for the Fujifilm EF-X500 external flash unit. Notice that the hot shoe has four-pins: the “center pin” is used for power; the other three pins are used for proprietary communication between the camera and flash unit, such as TTL.

Copyright © 2019 ReviewThree.com and B&H Photo. All rights reserved.

The pin configuration for other brands of external flash units varies by manufacturer, but most flashes use the center pin for power.

For example, all Canon external flash units (including the MT-26EX-RT Macro Twin Lite) have a five-pin hot shoe; the center pin is used for power and it’s aligned perfectly with the power pin on Panasonic bridge cameras. Therefore any current model of Canon flash is compatible with Panasonic bridge cameras with one caveat: TTL is incompatible, so it’s manual mode flash only. That’s not a problem since I prefer manual exposure for macro photography.

High-speed sync is also incompatible, but that’s a non-issue since Panasonic superzoom bridge cameras feature a leaf shutter in the lens rather than a focal plane shutter in the camera body. As a result, there is no camera “sync speed” so the flash will work properly using any shutter speed supported by the camera.

Related Resources

Copyright © 2019 Walter Sanford. All rights reserved.

Autumn Meadowhawk is a fall species

November 11, 2019

Autumn Meadowhawk (Sympetrum vicinum) is classified as a fall species of odonate. This blog post features two of many Autumn Meadowhawks that were spotted during a photowalk along the boardwalk in the central wetland area at Huntley Meadows Park, Fairfax County, Virginia USA.

The first individual is a male, as indicated by his terminal appendages. He is perched on a Swamp Rose (Rosa palustris) leaf. Nothing says “fall” like this little red devil against a background of fiery foliage!

The last individual is a male, perched on a cattail (Typha sp.) leaf near Swamp Rose and buttonbush (Cephalanthus sp.). The brown globes are the fruit of buttonbush.

The Backstory

My collection of field notes includes two text files that list lots of photos of both Blue-faced Meadowhawk (S. ambiguum) and Autumn Meadowhawk dragonflies that were never published in my photoblog.

Copyright © 2019 Walter Sanford. All rights reserved.

Blue-faced Meadowhawk (young male)

November 8, 2019

A Blue-faced Meadowhawk dragonfly (Sympetrum ambiguum) was spotted near a vernal pool in the forest at Huntley Meadows Park, Fairfax County, Virginia USA.

This individual is a young male, as indicated by the red pruinescence that partially covers his yellow-orange and black abdomen, plus his terminal appendages.

20 SEP 2013 | HMP | Blue-faced Meadowhawk (young male)

Regular readers of my photoblog know I’m fond of head-tilts in which the dragonfly seems to display some of its personality, especially when the individual is looking at me (below).

20 SEP 2013 | HMP | Blue-faced Meadowhawk (young male)

Left, right, left. I followed this guy from perch to perch for several minutes.

20 SEP 2013 | HMP | Blue-faced Meadowhawk (young male)

The Backstory

My collection of field notes includes two text files that list lots of photos of both Blue-faced Meadowhawk and Autumn Meadowhawk dragonflies (S. vicinum) that were never published in my photoblog. Most of the photos were taken during Fall 2013 when one of many vernal pools at Huntley Meadows Park was near peak diversity for odonate species that inhabited the pool. Sadly, those days are long gone!

Copyright © 2019 Walter Sanford. All rights reserved.