photoartflightGreat Blue Heron In The Grasses
Posted on September 4, 2021
As we were driving along the Brigantine Wildlife Drive looking for photo subjects we came upon this Great Blue Heron standing in the Grasses. It was quite far out so I put a 2X Teleconverter on my 150-600mm lens to get a closer image. It came out fairly well considering the Tamron 150-600mm lens @ 600mm with a 2X teleconverter (1200mm) is somewhat pushing the sharpness of the lens & image. Stopping down more to f/16 helped quite a bit plus using more Sharpening in Camera Raw when adjusting my images also helped. Usually when using a Teleconverter, I stop down more than I usually do when not using a Teleconverter. For example – when using a 1.4X teleconverter I stop down 1 more f/stop than usual. When using a 1.7X or 2X Teleconverter I stop down 2 stops more than usual. I flattened my layers & duplicated the final layer to have a duplicate layer above my final layer. Using Filter > Other>High Pass Sharpening I had a Grayscale duplicate image above my final color layer. The Grayscale layer was then changed from Normal to Overlay in the layers palette and I lowered the opacity of the High Pass layer to about 40 percent opacity. This just adds a little more Crispness or Sharpness (on the image edges) since I was using a 2X Teleconverter on the Tamron 150-600mm Lens. When using a Grayscale High Pass layer technique it is best to not go too “heavy” on the opacity of High Pass layer. Usually I only go to 20% or 30% opacity on the High Pass layer, but really depends on the image you are working on. This technique can also help sharpness when printing images on an Ink Jet Printer which is basically spraying the ink. But for Inkjet printing I would lower the High Pass layer even a little more. It takes some practice but helps. In my old commercial photo studio before I retired we also did a lot of Wide Format printing for our Corporate & Advertising Agency clients. I had 2- 60″ wide HP Printers for indoor display & fine art graphics & 44″ & 63″ Epson Printers for outdoor graphics or indoor specialty medias. Give this technique a try, but do not overdo the opacity of the High Pass layer. Again it takes some practice, but comes in handy.
Harvest Moon – Multi-stacked Teleconverter Tests
Posted on October 3, 2020
I tried a few different setups to photograph the Harvest Moon on October 1st. I was setup in my sunroom shooting out the side door. So I lined up a few teleconverters to try different combinations to see what combinations would work or not work well. The combinations of teleconverters is also based on which teleconverters would actually fit and go together in stacking because of protruding lenses or openings around the lenses in the teleconverters. In all I used 4 different brands of Teleconverter for my tests & 5 different teleconverters. I usually would use my 400mm f/4 DO lens but I loaned that to a friend so I was using the Tamron 150-600mm @ 600mm with the Teleconverter combinations. I was just curious of the quality of the images with different combinations of Teleconverters. The Featured Image was shot @ 600mm with a 2X Teleconverter.
Blue Dasher Thorax & Wing Detail
Posted on June 10, 2020
I thought it was interesting to see the details of where the wings attach to the thorax on this Blue Dasher dragonfly’s body. I was using a 300mm f/4 lens with a 2x teleconverter and an extension tube to get a closer view. I usually carry extension tubes or closeup filters with me in case I come upon an interesting closeup photo opportunity. But I usually use extension tubes more than closeup filters because you are adding another glass element that might degrade the image. You can also experiment with the placement of the extension tube. Placing the extension tube before or after the teleconverter gives you different “focus zones.” Also the width of the extension tube gives you different focus zones. So it is best to see what combination works best for you and the lenses you are using. But it is fun to try different ways to get the image you want. Plus you never know when it will come in handy. Images below are a series of images using extension tubes & teleconverters with 300mm & 400mm lenses.
Blue Dasher Dragonfly- 400mm f/4 DO Lens, extension tube, 1.4x teleconverter
Red-shouldered Hawk Take-Off Series
Posted on March 8, 2020
I am still going through files from past photo trips. Now that I am retired I have time to go back and work on images I had not gotten to adjust before. Work always seemed to get in the way. This is a series of images of a Red-shouldered Hawk take-off from a small branch at Ding Darling National Wildlife Refuge in Sanibel, Florida. I was using a 400mm DO lens with a 1.4x Teleconverter on a Canon 7D (for an effective Full Frame Camera equivalent field of view of ~896mm). Many times at Ding Darling you see interesting photo opportunities but the subjects are quite far away. So it is fun to try different ways to photograph distant subjects. The more you try different techniques, the better your results and are more predictable. With a 1.4x teleconverter I would stop the lens down 1 more stop than I would usually use. For a 2x teleconverter I would stop the lens down 2 stops more. With a 1.7x teleconverter I would also stop down 2 more stops than usual. Yes I actually found a 1.7x teleconverter for Canon lenses.
I was surprised it kept focus on the hawk and not on the branches as I was tracking the hawk.
Osprey Nests On Platforms @ 1200mm
Posted on July 27, 2019
A series of Osprey Platforms with nest images from the Edwin B. Forsythe NWR in Oceanville, NJ. I was using a Tamron 150-600mm lens with a 2X teleconverter to get closer to the Osprey Platforms. Then cropped in a little for a tighter composition. You can see the nests are not the neatest or cleanest when you are looking that close, but are still interesting. Also it is interesting when an Osprey sees you photographing them they really stare you down! The Canon R, even with a 2X teleconverter on a Tamron 150-600mm auto focuses quite quickly and right on focus. The Canon R will autofocus even with stacked 2x & 1.4X (or 1.7x) teleconverters. Did not try stacking 2X Teleconverters. I have also found that when stacking teleconverters I usually stop down a little more to help with sharpness.
Smiling Blue Dasher Dragonfly
Posted on July 6, 2018
For some reason Blue Dasher Dragonflies seem to look like they are smiling when you see them head on, giving an impression of a Happy Dragonfly. This Blue Dasher was out in a pond at a public county park, probably 6 to 8 feet from the shoreline. The featured image is a 4 shot Image Stack, manually focused and assembled in Photoshop. I used a combination of a 400mm lens, an extension tube, then a 1.4x teleconverter to actually enlarge the image on the sensor with the extension tube added. Sometimes I add another extension tube between the teleconverter and the camera body which enlargens the image on the sensor even more. But narrows your focus range even more and you tend to need a fill flash because of loss of light reaching the sensor to get a usable exposure for a subject that is somewhat moving its head or wings or its perch is moving in a breeze. Plus the added extension tubes also takes away light reaching the sensor. Sort of like the “Old” days when you were using a 4×5 or 8×10 view camera when you had the bellows racked out and had to adjust your exposure because of light loss from the distance of the lens and the film plane. By moving teleconverter and extension tubes you can get a variety of focus windows and enlargement of your final image on the sensor.
Blue Dasher 4 img Stack for Blue Dasher, then 4 image pano for the stick the Dasher was on. So 2 techniques used for final image.
Older shot showing similar Setup with one 1.4x teleconverter plus fill flash needed for using two separated extension tubes.
Another extreme setup with 2 extension tubes and 2 teleconverters. This really enlargens the image on the sensor but you need a fill flash or a very high ISO setting and has a very limited focus window.
Dragonfly setup at my old pond
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