apps / 898649178
Reciprocity Plus
Long exposures without failure
Le bord de la piscine · Photo & Video · $1.99 · US storefront
- rating
- 4.1 ★
- ratings
- 7
- updated
- Sep 8, 2025
- released
- Jul 22, 2014
v1.26
visible word pool · 6 words
title 16/30 chars · subtitle 30/30 chars
App Store search indexes the title and subtitle together with the hidden 100-character keyword field as one combined pool: any phrase assembled from those words can rank. These are the words of Reciprocity Plus's pool that are public — the keyword field is not exposed by any API.
from the listing
Reciprocity+ : photo tool, for calculating long exposure, for digital and analog photography. Are you tired of mentally multiplying exposure time with yor ND3+ND8 filters, and then adding reciprocity failure rate ? Reciprocity + is for you : • 29 Filters : CTO, CTB, Green series, ND serie and more • 110 Reciprocity charts included. • Design your own chart or modify an existing one • Share your charts with PInhole Assit App, • Share by email •Available charts : • A chart…
latest US reviews
★★★★★
Good but…
It is absolutely great for its fundamental purpose, calculating reciprocity departure time. There is a list of many many film types, with provision to save a certain number of those his favorites. However, and here is the butt, there appears to be no way to remove a favorite from…
— Lkrndu
★★★★★
Works, Works, Works!!
Only downside is I wish it added more film options. Like Cinestill 800T. There is no official data for it but through experimentation it can be added. Lomo400 follows the same guideline as Portra 400 but there is no portra 800 for example.
— newmanix
★★★★★
Uhhhh...
Nothing shows up on the reciprocity tab rendering this app useless for me even though I just paid for it... Using 13.1.2.
— littlebesos
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Where does it rank? Chart position is one signal — most installs come from keyword search. Check where Reciprocity Plus ranks for any keyword, free, with the rank checker.
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