Photo cross posted in the Sony FE Image Thread and taken at 7:20 PM.
Looking at our blooming White Dogwood white Bracts and flowers in the center of each of the 4 Bracts.
Cropped a little from both sides and bottom, Tripod mounted A1 and Voigtlander 110mm f2.5 Macro Apo-Lanthar, FE mount; silent shutter. Leofoto MP-180S Focusing Rail used to position the camera on the tripod with 11" Variable Friction Arm attached to the rail to mount, postion, and aim the Ulanzi VL-49 RGB LED light to supplement the lighting (set to 5500 degrees K at 100 %).
ISO 400, f11, 1/60 Second (in some wind).
Exposure Corrected +0.44 Stops.
May 10, 2022
In my garden bed in front of my home; Breinigsville, PA.
Photo cross posted in the Sony FE Image Thread and taken at 6:17 PM.
Looking at a rose from our front garden.
Cropped from right, Tripod mounted A1 and Voigtlander 110mm f2.5 Macro Apo-Lanthar, FE mount; silent shutter. 2 Macro Focusing rails were used to position the camera and lens on the tripod head and tripod. The lower focusing rail for the X-axis (left and right postioning) was the Leofoto MP-180S and the upper focusing rail for the Y-axis (front and back positioning) was the Swebo LS001. The Swebo LS001 was delivered on Thursday, June 2 after a wait of 39 days due to the shutdown in Shanghai, China.
ISO 400, f8, 1/80 Second (in some wind).
Exposure Corrected -0.26 Stops.
June 3, 2022
In my garden bed in front of my home; Breinigsville, PA.
Use the Voigtlander on a Nikon Z7 via a dumb adapter. The keeper rate for bugs/insects is pretty low although when I nail focus the image is good. Examples below. I was wondering if the Megadap adapter would provide any operational improvement other than exif data.
Thanks in advance for any replies.
Photo cross posted in the Sony FE Image Thread and taken at 7:26 PM.
Looking at pexels flowers from our front garden.
Tripod mounted A1 and Voigtlander 110mm f2.5 Macro Apo-Lanthar, FE mount; silent shutter. 2 Macro Focusing rails were used to position the camera and lens on the tripod head and tripod. The lower focusing rail for the X-axis (left and right postioning) was the Leofoto MP-180S and the upper focusing rail for the Y-axis (front and back positioning) was the Swebo LS001.
ISO 800, f8, 1/80 Second (in a little wind).
Exposure Corrected -0.09 Stops.
June 29, 2022
In my garden bed in front of my home; Breinigsville, PA.
naturephoto1 wrote:
Photo cross posted in the Sony FE Image Thread and taken at 7:26 PM.
Looking at pexels flowers from our front garden.
Tripod mounted A1 and Voigtlander 110mm f2.5 Macro Apo-Lanthar, FE mount; silent shutter. 2 Macro Focusing rails were used to position the camera and lens on the tripod head and tripod. The lower focusing rail for the X-axis (left and right postioning) was the Leofoto MP-180S and the upper focusing rail for the Y-axis (front and back positioning) was the Swebo LS001.
ISO 800, f8, 1/80 Second (in a little wind).
Exposure Corrected -0.09 Stops.
June 29, 2022
In my garden bed in front of my home; Breinigsville, PA.
bjornthun wrote: Focal lengths at lifesize magnification
Corresponding focal length of a symmetrical lens at lifesize magnification for Sony 90 G:
280mm /4 = 70mm
Corresponding focal length of a sym. lens at lifesize mag. for CV 110/2.5
350mm /4 = 87.5mm
Both lenses drop some of their focal length when going to lifesize magnification. Both lenses are floating element designs, Sony 90 G through internal focus and the CV 110/2.5 through three focus groups.
Actually, for a "true" lens made of many glass elements/groups the relationship between focus distance, D, magnification, M, and focal length, F, is a bit more complicated:
D = F(1 + 1/M) + InD + F(M + 1),
where InD is the internodal distance we don't know unless we know the details of the specific lens design. Note that InD is not a constant; it changes by changing the focusing distance.
If we assume that InD = 0, like in a thin lens (a single glass element with negligible thickness), we obtain
D = F(1 + 1/M) + F(M + 1)
hence
D = F(1/M + M + 2).
By putting M = 1 (1:1) in the last equation we get D = 4F, or F = D/4.
Steve Spencer wrote:
Basically all modern macro lenses drop focal length when they go to 1:1. Here are some examples:
Canon 100 f/2.8L - drops to 75mm
Nikon 105 f/2.8 G VR - drops to 78.5mm (25% drop)
Sony 90 f/2.8 G - drops to 70mm (22% drop)
Leica R 100 f/2.8 APO - drops to 75mm with elpro 1:1 adapter (no drop at 1:2)
Voigtlander 125 f/2.5 APO - drops to 95mm (24% drop)
Voigtlander 110 f/2.5 APO - drops to 87.5 (20% drop)
Zeiss Milvus (or ZE/ZF) - drops to only 97mm at 1:2 (when lenses only go to 1:2 we tend to not see them drop in focal length) ...Show more →
The above values are calculated with the approximate equation above (F = D/4) and therefore those figures do represent a rough guess of the actual focal length at 1:1.
The true focal length is often shorter.
For example, the true focal length @ 1:1 of my Micro Nikkor AF ED 200/4D is 102 mm. By using the method suggested by @elimoss and the equation: F = ExtensionTubeLength / ( NewMag - 1.0), I obtained a F value of 99 mm, in excellent agreement with the expected value (the difference being due to my visual estimation of fraction of mm using a millimeter ruler ...).
If we use the simplified equation F = D/4, we get 500/4 = 125 mm focal length, a value exceeding by 22.5% the true value.
The true F @ 1:1 of the AF-S ED 105/2.8G VR is 73.7 mm, not 78.5 mm; and so on.
Photo cross posted in the Sony FE Image Thread and taken at 5:28 PM.
Looking at a "carpet" of Muscari "Bluebells" in a field of Muscari "Bluebells". You can some of the paths separating the different patches of plants and flowers to try to keep viewers from stepping on them.
Tripod mounted A1 and Voigtlander 110mm f2.5 Macro Apo-Lanthar, FE mount; silent shutter.
ISO 100, f11, 1/60 second.
Exposure Corrected -0.09 Stops.
April 12, 2022
At Lock Ridge Park (the site of an old Iron Furnace works), Alburtis, PA.
Photo cross posted in the Sony FE Image Thread and taken last evening at 8:24 PM.
Looking at a Rose from my Garden mist sprayed with a Glycerin Water mix.
Image cropped from left and right and taken with tripod mounted A1 and Voigtlander 110 Macro Apo-Lanthar lens. 2 Macro Focusing rails were used to position the camera and lens on the tripod head and tripod. The lower focusing rail for the X-axis (left and right postioning) was the Leofoto MP-180S and the upper focusing rail for the Y-axis (front and back positioning) was the Swebo LS001. Lighting was my first attempt at using my recently delivered Adaptalux studio using mini tripod mounted Adaptalux Control Pod 3.0 and 2 white LED light arms and 1 super bright white LED Lighting Arm S from behind.
ISO 100, f11, 0.5 Second; silent shutter.
June 25, 2022
In my kitchen set up as a mini studio; Breinigsville, PA.
Photo cross posted in the Sony FE Image Thread and taken at 7:16 PM.
Looking at our blooming White Dogwood white Bracts and flowers in the center of each of the 4 Bracts.
Tripod mounted A1 and Voigtlander 110mm f2.5 Macro Apo-Lanthar lens, FE mount; silent shutter. Leofoto MP-180S Focusing Rail used to position the camera on the tripod with 11" Variable Friction Arm attached to the rail to mount, postion, and aim the Ulanzi VL-49 RGB LED light to supplement the lighting (set to 5500 degrees K at 100 %).
ISO 400, f11, 1/60 Second (in some wind).
Exposure Corrected +0.44 Stops.
May 10, 2022
In my garden bed in front of my home; Breinigsville, PA.
Photo cross posted in the Sony FE Image Thread and taken last evening at 8:18 PM.
Looking at pexels flowers from my Garden.
Image cropped from left and right and taken with tripod mounted A1 and Voigtlander 110 Macro Apo-Lantha, FE mount. 2 Macro Focusing rails were used to position the camera and lens on the tripod head and tripod. The lower focusing rail for the X-axis (left and right postioning) was the Leofoto MP-180S and the upper focusing rail for the Y-axis (front and back positioning) was the Swebo LS001. Lighting with Adaptalux studio with Control Pod 3.0 on mini tripod and 3 white LED light arms used.
ISO 100, f11, 0.5 Second; silent shutter.
Exposure Corrected -0.26 Stops.
August 28, 2022
In my kitchen set up as a mini studio; Breinigsville, PA.
Photo cross posted in the Sony FE Image Thread and taken at 7:39 PM.
Looking at pexels flowers from our front garden.
Tripod mounted A1 and Voigtlander 110mm f2.5 Macro Apo-Lanthar lens, FE mount; silent shutter. 2 Macro Focusing rails were used to position the camera and lens on the tripod head and tripod. The lower focusing rail for the X-axis (left and right postioning) was the Leofoto MP-180S and the upper focusing rail for the Y-axis (front and back positioning) was the Swebo LS001.
ISO 800, f8, 1/60 Second (in a little wind).
Exposure Corrected -0.09 Stops.
June 29, 2022
In my garden bed in front of my home; Breinigsville, PA.
Photo cross posted in the Sony FE Image Thread and taken at 8:35 PM.
Looking at pexels flowers from my Garden under Pure Ultraviolet Light.
Image cropped from left and right and taken with tripod mounted A1 and Voigtlander 110mm Macro Apo-Lanthar lens. 2 Macro Focusing rails were used to position the camera and lens on the tripod head and tripod. The lower focusing rail for the X-axis (left and right postioning) was the Leofoto MP-180S and the upper focusing rail for the Y-axis (front and back positioning) was the Swebo LS001. Lighting with Adaptalux studio with Control Pod 3.0 on mini tripod and 2 Adaptalux Pure Ultraviolet (UV) LED lighting arms used.
ISO 400, f5.6, 30 Seconds; silent shutter.
Exposure Corrected +1.14 Stops.
August 28, 2022
In my kitchen set up as a mini studio; Breinigsville, PA.
Photo cross posted in the Sony FE Image Thread and taken last evening at 8:13 PM.
Looking at a Grass Seed Tassel.
Tripod mounted A1 and Voigtlander 110mm Macro Apo-Lanthar lens. 2 Macro Focusing rails were used to position the camera and lens on the tripod head and tripod. The lower focusing rail for the X-axis (left and right postioning) was the Leofoto MP-180S and the upper focusing rail for the Y-axis (front and back positioning) was the Swebo LS001. Lighting was with Adaptalux studio with Control Pod 3.0 on a small carbon fiber tripod and 3 Adapalux white LED light arms were used.
ISO 100, f11, 2.5 Seconds; silent shutter.
Exposure Corrected -0.09 Stops.
September 5, 2022
In my kitchen set up as a mini studio; Breinigsville, PA.
naturephoto1 wrote:
Photo cross posted in the Sony FE Image Thread and taken last evening at 8:13 PM.
Looking at a Grass Seed Tassel.
Tripod mounted A1 and Voigtlander 110mm Macro Apo-Lanthar lens. 2 Macro Focusing rails were used to position the camera and lens on the tripod head and tripod. The lower focusing rail for the X-axis (left and right postioning) was the Leofoto MP-180S and the upper focusing rail for the Y-axis (front and back positioning) was the Swebo LS001. Lighting was with Adaptalux studio with Control Pod 3.0 on a small carbon fiber tripod and 3 Adapalux white LED light arms were used.
ISO 100, f11, 2.5 Seconds; silent shutter.
Exposure Corrected -0.09 Stops.
September 5, 2022
In my kitchen set up as a mini studio; Breinigsville, PA.
Igor Sotelo wrote:
The Adaptalux Control Pod 3.0 and LED arms look quite good for macro photography. Do you use the diffusers too?
I have only received the kit a very short time ago and am only getting aquainted with it. As I use the system more, I expect that I will use them at least in some instances.
Photo cross posted in the Sony FE Image Thread and taken at 5:23 PM.
Looking at a "carpet" of Muscari "Bluebells" in a field of Muscari "Bluebells". You can see at least one the paths separating the different patches of plants and flowers to try to keep viewers from stepping on them.
Tripod mounted A1 and Voigtlander 110mm f2.5 Macro Apo-Lanthar, FE mount; silent shutter.
ISO 100, f11, 1/50 second.
Exposure Corrected +0.09 Stops.
April 12, 2022
At Lock Ridge Park (the site of an old Iron Furnace works), Alburtis, PA.
Photo cross posted in the Sony FE Image Thread and taken at 7:59 PM.
Looking at pexels flowers from my Garden.
Tripod mounted A1 and Voigtlander 110mm Macro Apo-Lanthar. 2 Macro Focusing rails were used to position the camera and lens on the tripod head and tripod. The lower focusing rail for the X-axis (left and right postioning) was the Leofoto MP-180S and the upper focusing rail for the Y-axis (front and back positioning) was the Swebo LS001. Lighting with Adaptalux studio with Control Pod 3.0 on mini tripod and 3 white Adaptalux LED light arms.
ISO 100, f11, 0.4 Second; silent shutter.
August 28, 2022
In my kitchen set up as a mini studio; Breinigsville, PA.
Photo cross posted in the Sony FE Image Thread and taken at 8:24 PM.
Looking at a Rose from my Garden mist sprayed with a Glycerin Water mix. This is part of a series from my first attempt of using my recently received Adaptalux Studio.
Image cropped from left and right and taken with tripod mounted A1 and Voigtlander 110mm Macro Apo-Lanthar lens. 2 Macro Focusing rails were used to position the camera and lens on the tripod head and tripod. The lower focusing rail for the X-axis (left and right postioning) was the Leofoto MP-180S and the upper focusing rail for the Y-axis (front and back positioning) was the Swebo LS001. Lighting was my Adaptalux studio using mini tripod mounted Adaptalux Control Pod 3.0 and 2 white LED light arms and 1 super bright white LED Lighting Arm S from behind.
ISO 100, f8, 1/5 Second; silent shutter.
August 25, 2022
In my kitchen set up as a mini studio; Breinigsville, PA.
Photo cross posted in the Sony FE Image Thread and taken at 7:53 PM.
Looking at pexels flowers from our front garden.
Tripod mounted A1 and Voigtlander 110mm f2.5 Macro Apo-Lanthar, FE mount; silent shutter. 2 Macro Focusing rails were used to position the camera and lens on the tripod head and tripod. The lower focusing rail for the X-axis (left and right postioning) was the Leofoto MP-180S and the upper focusing rail for the Y-axis (front and back positioning) was the Swebo LS001.
ISO 800, f8, 1/50 Second (in a little wind).
Exposure Corrected -0.09 Stops.
June 29, 2022
In my garden bed in front of my home; Breinigsville, PA.
