Troubleshooting Yashica Mat 124G with Velvia 50 -- Please help!

photonius

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Hello all,

I'm new to this forum and to medium format photography in general and would appreciate some help troubleshooting my new (used) camera.

I recently bought a Yashica Mat-124G off ebay and shot a couple of test rolls with it, one being a Fuji Superia 400 and the other a Velvia 50.

The Superia was first and I had it developed at my local lab. When I went to pick up the negs + prints, the guy commented on the sharpness of my images and asked if I'd used a Hasselblad. Unfortunately, I wasn't half as impressed as he was and felt certain I'd taken sharper photos with my Zenit EM with a Helios 44M lens. As this was my first try with the Yashica I put it down to inexperience and nervousness about handling the camera, although a couple of shots had been taken with the camera placed on firm support (e.g. pavement slab) so camera shake couldn't have been much of a factor really.

The camera was advertised as fully working and in very good condition. The taking lens looks clear from the front but when looked at with the shutter locked in 'B' it's obvious that there are two whitish spots on one of the rear elements along with a couple of much smaller bluish ones. The whitish spots have frayed edges (though these are barely visible to the naked eye and I haven't got a loupe or magnifier that I could use). Could this be a case of etching of the glass surface from cleaned-up fungus? Or an ongoing fungal infestation? :eek:

Also there's not much left of the light seals on this camera. When I flip open the top to look at the viewfinder, there's always small bits of foam disintegrating and falling on the surface of the viewfinder. I can actually catch a glimpse of the light meter from the slit.

Anyway, I thought I'd have a go with a second roll of film and that's when I tried with the Velvia 50 (shot at 50 ISO) on a sunny afternoon. This time I used a tripod and cable release for some of the shots to eliminate the possibility of camera shake. I sent off the roll to Genie Imaging requesting E6 development and scanning. The results were just as disappointing as previously but being a novice with colour film and with slide film in particular I'm not sure if it's the camera that's to blame or my exposures. All of the metering was done through the camera's built-in light meter which is powered by the original 1.5 volt mercury battery. To my eye, there's a lack of sharpness, the colours look unnatural and there's a purplish tint in some of the darker images. The negs do look better when held up to the light and viewed with a reversed 58mm lens but the scanned images look pretty awful.

All in all I'm very discouraged and not sure what to do.:( Any tips would be greatly appreciated.

http://www.flickr.com/photos/13130584@N08/

(I tried uploading some pics onto my TP gallery but it didn't work, no error message, just nothing uploaded).
 
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I've had a look at some of your photos and tbh I think the ones on the tripod look very good. I had one of these cameras years ago and I always found the images a little soft, not out of focus but actually soft and perhaps less contrasty than newer more modern lens design, so that may be contributing to your opinion.
Light seals, I'd see if i could get them sorted before they start to let in light, doesnt appear they are letting light in at present.
Fungus etc, well, on here I read some people saying that it doesnt detract from IQ, no experience of that myself as none of my lens have any fungal infection.

From what I have seem of your photos I dont think I would be unhappy.

Matt
 
I don't think you should be complaining about the sharpness really, it's as good as you'll get from any camera with a lens that old. And it's not bad at all, I was always quite happy with the results from mine.

It is prone to faults though, mine. I've not long had it serviced, in which the battery thing and light seals were replaced, meter was calibrated and shutter fixed (it was sticking). Now, about a month later, the light meter usually doesn't do anything, and when it does it's always a few stops off, and the shutter is sticking again. The foam bits you mention that are coming off happens a lot with older cameras & it's an easy repair job.

You might want to try scanning them yourself, or paying to have it done properly. That can get rid of lots of issues.
 
Shots look good to me too. The colour cast may be just the blue nature of velvia coming out. It is also very unforgiving with exposures that are even slightly off.
 
Thank you all for your comments and feedback! I've looked at my scans again and the colours seem spot on so I guess it's just the scans that are problematic. There's no purple on the slides that I can detect when holding them up to the light and checking them with a reversed 58mm lens (unfortunately, it's all I've got at the moment but I'm looking to get a proper lightbox and loupe in the not too distant future!)

When examining the slides in this way, I have to admit the images look fine, very lifelike and with a good level of detail. I have no way of knowing if a proper loupe, with a decent degree of magnification, would have shown up problems with the focusing. I guess it might be worth doing a test shoot with simpler subjects (e.g. bottles in a row) to eliminate the possibility of a misalignment between focusing screen and film plane.

I think I probably expected better of the scans, although in all fairness the lab that I used for the Velvia roll, Genie Imaging, are probably the cheapest in the UK for E6.
 
Scanning Velvia is a notoriously tricky thing to do, especially if Genie uses a generic scanning profile for scanning 120 slides in. If you put a slide on a light box, it has such an astonishing range of colours in the palette that it is easy to see how a scanner would struggle to fully capture it, as well as needing to account for the certain casts and prominence that occurs with certain colours with Velvia.
 
I'm hoping to get a good 124g soon, had one in the 80's and 90's and mine was very sharp and impressive. Stupidly sold it never realising my interest would be rekindled. Just had the transparencies out the other day, superb.
 
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