Gianfranco47 Loc: Senoia GA

I bought one 120mm medical Nikkor to make some macro photos using my digital Nikon D4s , above lens has in front an anular flash that is driven in two ways
With a cable among the lens and one power receiver
With a cable Sync SC23 which connects lens to flash socket of the camera
A professional photographer suggest do not use this method with digital camera ( lens originally was built in late 80’) since I can damage the internal module of the digital camera it was perfect with Nikon analogic
cameras in fact the length of the cable is too short for digital flash shoes ,
How can solve the problem to use this lens outside using the camera flash shoe connected with the lens

uhaas2009

I believe that is your answer

https://www.bhphotovideo.com/c/product/767442-REG/Vello_HSA_PSU_Universal_Hot_Shoe_Adapter.html/?ap=y&gclid=EAIaIQobChMIyfftuLv57wIViYvICh3pUwNvEBwYBiABEgKkoPD_BwE&lsft=BI%3A514&smp=y

Gianfranco47 Loc: Senoia GA

Ok but the length of the cable to be used among the lens and this trigger is not enough , it is only 12 cm (5 inches ) , I’m trying also to find a cable with the same lens socket more longer ) 10 inches is enaugh

User ID

Can’t see that solving anything.

Might just be stuck with 3 ft of curly cord extension, just to solve a 3” shortfall.

E.L.. Shapiro Loc: Ottawa, Ontario Canada

According to the manufacturer's specifications in the service manual, the power supply for the Medical Nikor is about 30 Volts. This should no damage any part of your digital camera as long as it is within the camera's specification for maximum trigger voltage.

You can synchronize it to you camer via a synchronization cord or through the hot shoe. As a precaution, I woud first advice you to check the trigger voltage to make sure there is no malfunction that woud cause the voltage to increase. The use of a protector/adapter such as a Wein Safe-Synch or a special protection synch cord made by Paramount Cords will reduce the trigger voltage to a safe level for any digital camera. Either device goes between the flash unit's trigger circuit and the cameras synchronization socket or the contact on the hot shoe.

The length of the corn does not offer any such protection in an of itself. The Safe-Synch and the exposure automation in the current digital cameras so exposure is set manually.Paramount cord have additional circuitry.

As far as I recall, the older models of the Medical Nikor does no inter-phase with any of the TTL or automatic exposure system of current digital cameras.

Here's a link to the user manual-

https://cdn-10.nikon-cdn.com/pdf/manuals/archive/Medical-Nikkor%20120mm%20f-4%20IF.pdf


Link to Paramount Save Voltage Cord- https://paramountcords.com/about/sync-voltage/

Link to Wein Safe Synch-

https://www.bhphotovideo.com/c/product/245292-REG/Wein_W990560_Safe_Sync_Hot_Shoe_to.html

Gianfranco47 Loc: Senoia GA

thank you very much , i appreciate your suggestions , i must read everything you sent to me
regards
Gianfranco

Sidwalkastronomy Loc: New Jersey Shore

I'm a retired dentist and when digital came around my close up flash and lens became obsolete as per the manufacture. I was forced to buy a new flash from Lester Dine to be safe. They said old units would fry the new camera. I didn't want to take chances.
Photos were always great and their customer service is excellent

Gianfranco47 Loc: Senoia GA

I ‘m trying to make some macro photos of butterflies and other insects using medical
nikkor and the inside flash coupled with digital camera but it is not easy

jeweler53

I have this lens and have used it a number of times on my Df with no problems. It is a fun lens to use! It has been quite awhile since I have used it though. I should probably sell it.

Sidwalkastronomy Loc: New Jersey Shore

I have the Tamron 90 macro with a ring flash

Gianfranco47 Loc: Senoia GA

How you connect the lens with your DF camera to use the flash of the lens

sippyjug104 Loc: Missouri

The Nikon 120mm medical macro lens is an amazingly razor sharp lens and it would surely be a joy to take to the field.

I'm not sure that the built in illumination will produce any results different than a quality ring-light. Photos for medical records have different goals and expectations than artistic macro images would desire. You may find that the shadows may be a bit harsh and that it may produce specular highlights. Enveloping the subject that is ever so close to the end of the lens with a soft even diffused light is more artistically pleasing than a bare flash on the end of the lens a few inches from the subject.

I often remind myself of the physical law of light which is that the intensity of the light varies with the square of the distance so when the subject is just a few inches away "the light will be bright". Non-LED flashes produce the same intensity of light yet they vary the duration of the flash. An LED ring light can vary the intensity although when turned down it greatly impacts the intensity of light on the subject (it's that darn square of the distance law).

Gianfranco47 Loc: Senoia GA

Most probably I’ll use it with external source of light

larryepage Loc: North Texas area

I do not wish you to damage your camera, so I'm perfectly OK if you don't take my word for it. BUT...I have been assured by camera technicians at my local camera store and at my local camera reply shop that Nikon professional level DSLRs (Dx, D300, D500, D800, D810, D850 models) all have flash control circuits which are designed to be compatible with trigger voltages up to 250 volts. I have not personally tested this, because all of my flash units are modern Nikon models, but I have no reason to question their counsel. I do know that I bought box of stuff a few years ago which included a D200 that had an inoperative flash system, but I do not know the history of how it got that way. Because of that uncertainty, I have not included it in the list.

Gianfranco47 Loc: Senoia GA

I have an D4S it is a pro camera so I should not have some problem with lens flash , cross the fingers