Hello everybody,
Which MSPlans are good for macrophotography (normal, ULWD, etc.)?
I would like to use them with Canon Ef 100 macro or Canon Ef 70-200 as a tube lens.
BR, Adi
Olympus Msplan for macro-photography
Moderators: rjlittlefield, ChrisR, Chris S., Pau
- Charles Krebs
- Posts: 5865
- Joined: Tue Aug 01, 2006 8:02 pm
- Location: Issaquah, WA USA
- Contact:
These are pretty good objectives, intended to be used with 180mm tube lens...BUT... they were also intended to be used with chromatically corrective eyepieces and photo-eyepieces.
I've never tried them without the intended corrective optics so I can't say how objectionable any color errors might be if they were used as you intend..
I've never tried them without the intended corrective optics so I can't say how objectionable any color errors might be if they were used as you intend..
- Charles Krebs
- Posts: 5865
- Joined: Tue Aug 01, 2006 8:02 pm
- Location: Issaquah, WA USA
- Contact:
I would definitely give it a try before making any conclusions. Yes, it is always best to use the optics as the manufacturer intended, but it doesn't hurt to try., looks like I won't get good results.
I'm curious now... I think I will do a comparison between an MSPlan and one of my newer Olympus UIS objectives (that don't require corrective eyepieces). If would be very interesting to see the difference.
You're looking for CA and SA, which will be worse towards the corners if they're there.
Try something like LASER printed patch of very fine text, such as on a bank statement or a date code on a product box/label. It has small spatter-dots.
I have used white plastic (like credit card) with fine scrapings of pencil lead, which are sharp and small. You can't keep them long though!
Chris S has a technique of floating butterfly scales onto a slide. Using just alcohol some tend to stick flat. I've had mixed results doing that.
Scratched "sand" paper works but it's not always easy to see what's going on, due to varying amounts of binding resin between the grains.
Having said all that, if you need a flat, monochrome target under ideal conditions to detect anything wrong because it's not visible on a normal subject, then just stick to normal subjects!
Contrast varies even between copies of the same lens, and depends of course on "everything else" as well.
Try something like LASER printed patch of very fine text, such as on a bank statement or a date code on a product box/label. It has small spatter-dots.
I have used white plastic (like credit card) with fine scrapings of pencil lead, which are sharp and small. You can't keep them long though!
Chris S has a technique of floating butterfly scales onto a slide. Using just alcohol some tend to stick flat. I've had mixed results doing that.
Scratched "sand" paper works but it's not always easy to see what's going on, due to varying amounts of binding resin between the grains.
Having said all that, if you need a flat, monochrome target under ideal conditions to detect anything wrong because it's not visible on a normal subject, then just stick to normal subjects!
Contrast varies even between copies of the same lens, and depends of course on "everything else" as well.
Chris R
Hello everyone,
OK, I have just ordered a MSPlan 50x/0.55 oo/0 ULWD.
In the worst case I will have to use the method described in
http://www.photomacrography.net/forum/v ... highlight=
for the correction of the CA.
BR, Adi
OK, I have just ordered a MSPlan 50x/0.55 oo/0 ULWD.
In the worst case I will have to use the method described in
http://www.photomacrography.net/forum/v ... highlight=
for the correction of the CA.
BR, Adi
Hello everyone,
I have just received this lens
http://www.photomacrography.net/forum/v ... 366#190366
BR, Adi
I have just received this lens
http://www.photomacrography.net/forum/v ... 366#190366
BR, Adi