hatem tawfik
Forum Enthusiast
A friend of mine is about to buy a D30 for medical purposes. His question is: Does the camera menu have an option for B&W ( in-camera ??)
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Medical D30
- Thread starter hatem tawfik
- Start date
I don't have a D30 but do have a D60 - which should be similar.
No - it doesn't have B&W in-camera.
Does he plan to use it for radiology?
Eric
No - it doesn't have B&W in-camera.
Does he plan to use it for radiology?
Eric
a person
Senior Member
a person
Senior Member
There is no in-camera black and white function on the D30. You can, however, convert to B/W very easily with software, and several methods are available to give you different black and white "looks".
I wonder if Digital-camera therapy is covered by my insurance? Maybe I can get re-imbursed for my D60!! =
- Woody -
hatem tawfik
Forum Enthusiast
No for fundus photography and fluorescein angiography as a replacement for something called Imagenet system. ( if you are an ophthalmologist you will figure that out)
hatem tawfik
Forum Enthusiast
Please elaborate on that, isnt it a simple process on PS, are there other option to get a different look
Jon Stewart
Senior Member
Hi...
Yes it is take the colour image and do the usual bit of sharpening. Then Image ~ Adjust ~ Channel mixer
This allows you to mix and preview different combinations of red, green and blue channels in black and white. It gives much better quality, texture, tone etc than just converting the image to greyscale via the mode command.
You can save favourite settings of channels mixes, and your friend may find this most useful for generating images from different staining techniques.
Regards
Jon Stewart
[email protected]
Yes it is take the colour image and do the usual bit of sharpening. Then Image ~ Adjust ~ Channel mixer
This allows you to mix and preview different combinations of red, green and blue channels in black and white. It gives much better quality, texture, tone etc than just converting the image to greyscale via the mode command.
You can save favourite settings of channels mixes, and your friend may find this most useful for generating images from different staining techniques.
Regards
--
Jon Stewart
[email protected]
D
DonCohen
Guest
Hi Hatem,
I'm also an ophthalmologist (general, not retina, and don't use/have a fundus camera).
The D30 has no specifid b/w mode, but as others have pointed out, it's not a problem to convert it in Photoshop or other editor.
Out of curiousity, how does the interfce of the camera unit connect to the D30? Does the camera that came with it have a Canon SLR connector? T-Mount, or what?
Don
http://www.dlcphotography.net
I'm also an ophthalmologist (general, not retina, and don't use/have a fundus camera).
The D30 has no specifid b/w mode, but as others have pointed out, it's not a problem to convert it in Photoshop or other editor.
Out of curiousity, how does the interfce of the camera unit connect to the D30? Does the camera that came with it have a Canon SLR connector? T-Mount, or what?
Don
http://www.dlcphotography.net
a person
Senior Member
The best way I know that is the quickest is to convert to lab colors, split the channels, use L-0 and throw out A-0 and B-O. That gives a more accurate black and white than a straight desaturate. My brother is a photography major in college and knows a lot more than me. He has classes in digital imaging and that is one the tips he passed on to me.
-Ken
-Ken
a person
Senior Member
My father is an opthalmologist who uses a digital camera for retinal imaging. He owns a D30, but doesn't use it for that purpose- he uses a special setup. If you want I could ask him about it.
-Ken
-Ken
hatem tawfik
Forum Enthusiast
Hi Don
I am an oculoplastic surgeon from Egypt, The fundus camera machine has a modified EOS connector with a special pin which probably connects the camera with the retina flash. I have tried my ELLAN IIE on his machine and it didnt fit because of this pin.
What they ( Canon dealer here) are offering is a filter adapter ( probably for the pin) and a D30 for $10000 ( ten thousand dollars). I have been trying to convince him to buy the adapter only for 2000 and we can buy him a used D30 and he could save a lot. He is afraid they might be selling him a special D30 in which the firmware is modified to disable BW photography because all his work is in BW, but apparently it isnt there in the first place.
By the way I only shoot digital in my practice, but using the minolta D7 because I cant afford the D30/60
hatem tawfik
Forum Enthusiast
Thanks for the input, I will try both methods now
D
DonCohen
Guest
Thanks, Hatem.
Hope it works out for him.
Don
http://www.dlcphotography.net
That price does seem ridiculously high. It's amazing how the mark-up skyrockets whenever something is being used in a medical context. Sounds like "highway robbery" to me.
Obviously I don't really know, but I'd be surprised if they were customizing the D30's firmware or even hardware in some way, for just one customer. My first guess would be just a ridiculously high mark-up on the D30, along the lines I referred to above.
Hope it works out for him.
Don
http://www.dlcphotography.net
Jeff Gourley
Well-known member
Been using a G2 for Medical Photos for about 8 months. It performs much better than my D30 and the swivel really comes in handy for excellent one hand operation. You Need:
Canon G2
Canon MR-14EX Macro Lite
Canon Step Up adaptor ($18)
Canon Ring Lite Adaptor ($12)
Canon 250D 58mm Macro (optional)
Regardless of what you choose, you MUST have the MR-14EX in order to produce accurate shots. Surgical lights do not provide proper illumination for photography.
Canon G2
Canon MR-14EX Macro Lite
Canon Step Up adaptor ($18)
Canon Ring Lite Adaptor ($12)
Canon 250D 58mm Macro (optional)
Regardless of what you choose, you MUST have the MR-14EX in order to produce accurate shots. Surgical lights do not provide proper illumination for photography.
Jeff Gourley
Well-known member
The G2 may also hook up to your scope (58mm standard, up/down filters), shoots in B&W. The Nikon CP (990,995,5000) line is best for adapting to a scope for due to it's broad focusing range.
hatem tawfik
Forum Enthusiast
Speaking of the G2, will there ever be a sequel to the powershot pro 90.
Why do you say the G2 is better than the D30 for medical purposes, in what ways, I dont think focusing is better, I had the G1 for over 10 months, and the one thing that I didnt like about it was the focus
Why do you say the G2 is better than the D30 for medical purposes, in what ways, I dont think focusing is better, I had the G1 for over 10 months, and the one thing that I didnt like about it was the focus
D
Dr-KD
Guest
Jeff:
can your setup (G2 + Mr-14-Ex + 250D 58 Macro) get 1:1 shots?
What is the 58mm macro exactly? I thought the G2 has a fixed lens.
Thanks
KD
can your setup (G2 + Mr-14-Ex + 250D 58 Macro) get 1:1 shots?
What is the 58mm macro exactly? I thought the G2 has a fixed lens.
Thanks
KD
Jeff Gourley
Well-known member
When speaking of digital (D30 or G2) lets not talk 1:1- the ratio refers to actual image size to film size (ie. 35mm) and we know the sensors are much smaller than the same 35mm film size, however with a high resolution camera such as the G2 or D30, 60- we must ask the question "What type of output do I need?" 5x7 Print, 4x6 Print, 16x20 Print? Screen? The intended output is one of the most important and undervalued selection qualities in choosing the right digicam. My experience: The G2 is the superior camera of choice for "1:1" mcaro equiv. if output is 5x7 print or any screen magnification. Let me say again, that Nikon has an edge in the area of photographing through a microscope attachment (biopsy slides etc.). Why the G2 Edge: Ultra precisce metering with the Canon MR-14EX (which again is essential for correct/consistent exposure), Saturation control on camera- excellent for dealing with red fields, Manual Ap., Shutter, and Focusing- though auto focus performs at as well as the the D30 (100mm 2.8) for most surgical shots- and possibly better for dificult shots (due to ergonomics of the flip out LCD and preview focus indicators- when green in focus). The problem with using DSLR for some shots is the lack of LCD preview (only review) meaning the photographer must get his nose down near the site- as both cameras have to be close.
The 250D, is a 58mm macro attachment that fits onto the G2 with the G2 step up ring in place. This attachment decreases the minimum focusing range of the G2 and magnifies the subject to a bit. Again, still life macro shots with the G2 rival those of the D30 with the 100mm 2.8. Further, the G2 though limited to F8 Ap. has a 21mm lens which (and I'm not sure of the conversion) is not the same as F8 on 35mm- more like F14-F16 which is plenty DOF.
If the Nikon 5000 had been created (something I requested of Nikon) for use with the Nikon Ringlite SB-29 ETTL (as is the G2 with the MR-14EX) then is might have been the superior camera with the added MP, increase native focusing range (2cm), and 5 area auto focus- howver, as the the flash sensor is blocked with the ring lite mounted- it is all but useless for Medical Macro shots.
One more thought with regard to focusing: as I've stated, I much prefer focusing with the G2 largely due to ergonomics. However, let me say that the manual focus mech. on the G2 is very easy to use and accurate for tricky shots. If you haven't tried the MF- you should to confirm what I'm saying here.
Does this all make sense?
The 250D, is a 58mm macro attachment that fits onto the G2 with the G2 step up ring in place. This attachment decreases the minimum focusing range of the G2 and magnifies the subject to a bit. Again, still life macro shots with the G2 rival those of the D30 with the 100mm 2.8. Further, the G2 though limited to F8 Ap. has a 21mm lens which (and I'm not sure of the conversion) is not the same as F8 on 35mm- more like F14-F16 which is plenty DOF.
If the Nikon 5000 had been created (something I requested of Nikon) for use with the Nikon Ringlite SB-29 ETTL (as is the G2 with the MR-14EX) then is might have been the superior camera with the added MP, increase native focusing range (2cm), and 5 area auto focus- howver, as the the flash sensor is blocked with the ring lite mounted- it is all but useless for Medical Macro shots.
One more thought with regard to focusing: as I've stated, I much prefer focusing with the G2 largely due to ergonomics. However, let me say that the manual focus mech. on the G2 is very easy to use and accurate for tricky shots. If you haven't tried the MF- you should to confirm what I'm saying here.
Does this all make sense?
D
Dr-KD
Guest
Jeff:
Thanks for the detailed explanation and clarification. It looks like you have a good setup for what I need.
But let me rephrase and ask you this question.
With your setup, can you get an object 36mm wide, to fit the entire image (without croping)?
Thanks,
KD
Thanks for the detailed explanation and clarification. It looks like you have a good setup for what I need.
But let me rephrase and ask you this question.
With your setup, can you get an object 36mm wide, to fit the entire image (without croping)?
Thanks,
KD
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